In bold, the official abbreviations
- Pabón Garcés, G (Pabón) Galo Pabón Garcés (fl. 1995)
- Pabot, H (Pabot) Henri A. Pabot (1916–1990)
- Pabst, GFJ (Pabst) Guido Frederico João Pabst (1914–1980)
- Pabst, MB Marie B. Pabst (1909–1963)
- Paccard, E (Paccard) Ernesto Paccard (fl. 1905)
- Pace, R Roberto Pace
- Pacheco, JF José Fernando Pacheco
- Packard, AS (Packard) Alpheus Spring Packard (1839–1905)
- Packer, JG (Packer) John G. Packer (1929– )
- Packer, L (L.Packer) Laurence Packer
- Packert, M Martin Päckert
- Paclt, J Jiří Paclt (1925–2015)
- Pacyna, A (Pacyna) Anna Pacyna (1940– )
- Paczoski, JK (Pacz.) Józef Konrad Paczoski (1864–1942)
- Padgett, DJ (Padgett) Donald Jay Padgett (1968– )
- Padial, JM José Manuel Padial
- Padian, K Kevin Padian
- Paegle, B (Paegle) Berta Paegle (fl. 1927)
- Paek, MK (Paek) Mun-Ki Paek
- Pagast, F Félix Pagast (†1954)
- Page, CN (C.N.Page) Christopher Nigel Page (1942– )
- Page, JS (J.S.Page) Jennifer S. Page (1949– )
- Page, LM Lawrence M. Page
- Page, MGP (M.G.P. Page) Malcolm G.P. Page
- Page, RDM Roderic D.M. Page
- Page, WB (Page) William Bridgewater Page (1790–1871)
- Page, WM (W.M.Page) Winifred Mary Page (1887–1965)
- Pagenstecher, AAF Arnold Andreas Friedrich Pagenstecher (1837–1913)
- Pagés, J Jean Pagés
- Pagès, F Francesc Pagès
- Pagès, J Jerôme Pagès
- Paggi, AC Analía Constancia Paggi
- Paglia, E (Paglia) Enrico Paglia (1834–1889)
- Paguntalan, LM Lisa Paguntalan
- Pai, KW (K.W. Pai) Kiu-Wei Pai
- Paik, KY Kap Yong Paik (1914–1996)
- Paik, WH Woon Hah Paik (1917– )
- Pailleux, A (Pailleux) Auguste Pailleux (1812–1898)
- Pain, T Thomas Pain (1915–2003)
- Painter, JH (J.H.Painter) Joseph Hannum Painter (1879–1908)
- Pais, V Vanessa Pais
- Paiva, JAR Jorge Américo Rodrigues Paiva
- Paixão, RJ (Paixão) Renata Jacomo Paixão
- Pajaud, DB Daniel Bernard Pajaud (1934–2003)
- Pak, OV (Pak) Oleg V. Pak
- Pakaluk, J James Pakaluk
- Pakenham, RHW Richard Hercules Wingfield Pakenham
- Pal, GD (G.D.Pal) Gaur Das Pal (1941– )
- Pal, TK Tarun Kumar Pal (1953– )
- Palacio Goenaga, EE Edgard Enrique Palacio Goenaga
- Palacios, RA (R.A.Palacios) Ramón A. Palacios (1941– )
- Palacios-Duque, L (Pal.-Duque) Leonardo Palacios-Duque (1980– )
- Palacky, J Johann Palacky (1830–1908)
- Palau, P (P.Palau) Pedro Palau (1881–1956)
- Paláu y Verdera, A Antonio Paláu y Verdera
- Palazzi, S Stefano Palazzi
- Palestrini, C Claudia Palestrini
- Palibin, IV (Palib.) Ivan Vladimirovich Palibin (1872–1949)
- Palice, Z (Palice) Zdeněk Palice
- Palisot de Beauvois, AMFJ Ambroise Marie François Joseph Palisot de Beauvois (1752–1820)
- Palissa, A Alfred Palissa (1925– )
- Palla, E Eduard Palla (1864–1922)
- Pallary, PM Paul Maurice Pallary (1869–1942)
- Pallas, PS (Pall.) Peter Simon Pallas (1741–1811)
- Palleroni, NJ Norberto J. Palleroni (1922–2018)
- Palm, ME (M.E.Palm) Mary Egdahl Palm (1954– )
- Palma, RL Ricardo L. Palma
- Palmer, AR Allison R. Palmer (1927–2022)
- Palmer, E (Palmer) Edward Palmer (1831–1911)
- Palmer, EJ (E.J.Palmer) Ernest Jesse Palmer (1875–1962)
- Palmer, TC (T.C.Palmer) Thomas Chalkley Palmer (1860–1934)
- Palmer, W (W.Palmer) William Palmer (1856–1921)
- Palmstruch, JW (Palmstr.) Johan Wilhelm Palmstruch (1770–1812)
- Palot, MJ Muhamed Jafer Palot
- Paluch, M Márlon Paluch
- Paludan, K Knud Paludan (1908–1888)
- Pampanini, R (Pamp.) Renato Pampanini (1875–1949)
- Pamukchiev, A Angel Pamukchiev (1935–2022)
- Pamukçuoǧlu, A (Pamukç.) Adil Pamukçuoǧlu (1929– )
- Pan, JT (J.T.Pan) Jin Tang Pan (1935– )
- Pan, KY (K.Y.Pan) Kai Yu Pan (1937– )
- Pan, Y (Y. Pan) Yitao Pan
- Pan, ZH Zhao-Hui Pan (entomologist)
- Pan, ZX (Z.X.Pan) Zhi-Xiang Pan
- Panarotto, P (Panar.) Paolo Panarotto (fl. 1998/2003)
- Pancher, JAI (Pancher) Jean Armand Isidore Pancher (1814–1877)
- Pancic, J (Pancic) Josif Pančić (1814–1888)
- Pandey, PS (P.S.Pandey) P.S. Pandey (fl. 1985)
- Pandit, H Hemchandra Pandit
- Pandurangan, AG (Pandur.) Alagramam Govindasamy Pandurangan (fl. 1993)
- Panero, JL (Panero) José L. Panero (1959– )
- Panesar, A (Panesar) Arne Panesar
- Panfet, CM (Panfet) Cristina Mercedes Panfet Valdés (1957– )
- Pang, H Hong Pang
- Pang, JM Jian-Mei Pang
- Pang, QQ Qi-Qing Pang
- Pang, XF Xiong-Fei Pang (1930–2004)
- Pangalo, KI (Pangalo) Konstantin Ivanovich Pangalo (1883–1965)
- Panha, S Somsak Panha
- Paniagua, M Miguel Paniagua
- Panigrahi, G (Panigrahi) Gopinath Panigrahi (1924–2004)
- Panitvong, N Nonn Panitvong
- Pannell, CM (Pannell) Caroline M. Pannell
- Panov, PP (Panov) Panajot P. Panov (1932– )
- Pansarin, ER Emerson Ricardo Pansarin
- Pant, DD (D.D.Pant) Divya Darshan Pant (1919–2001)
- Pant, G (G.Pant) Garima Pant
- Panteleyev, AV Andrey Valentinovich Panteleyev (1961– )
- Pantin, CFA Carl Frederick Abel Pantin (1899–1967)
- Pantling, R (Pantl.) Robert Pantling (1856–1910)
- Pantocsek, J József Pantocsek (1846–1916)
- Panţu, ZC (Pantu) Zacharia C. Panţu (1866– 1934)
- Panzer, GWF Georg Wolfgang Franz Panzer (1755–1829)
- Paoletti, G (Paol.) Giulio Paoletti (1865–1941)
- Paoli, P Pasquino Paoli
- Paolillo O., A Alfredo Paolillo-O.
- Papáček, M (Papáček) Miroslav Papáček (1953–2019)
- Papanicolaou, K (Papan.) Konstantinos Papanicolaou (1947– )
- Papavero, N Nelson Papavero (1942– )
- Pape, T Thomas Pape (1960– )
- Papenfuss, TJ Theodore Johnstone Papenfuss
- Paperna, I Ilan Paperna
- Papini, A (Papini) Alessio Papini (1964– )
- Papong, KB (Papong) Khwanruan Butsatorn Papong
- Papp, C (Papp) Constantin Papp (1896–1972)
- Papp, CS Charles Steven Papp (1917–2006)
- Papp, J (J. Papp) Jenő Papp (1933–2017)
- Papp, L László Papp (1946–2021)
- Pappe, KWL Karl Wilhelm Ludwig Pappe (1803–1862)
- Pappenheim, P Paul Pappenheim
- Paramonov, NM Nikolai Mikhailovich Paramonov (1976–)
- Paramonov, SJ Sergey Jacques Paramonov (1894–1967)
- Pardo, I (Pardo) Isabel Pardo
- Pardo Sastrón, J (J.Pardo) José Pardo Sastrón
- Parent, O Octave Parent (1882–1942)
- Parenti, LR Lynne R. Parenti
- Parenti, P Paolo Parenti
- Parenti, U (U. Parenti) Umberto Parenti
- Paretas-Martínez, J (Paretas-Martínez) Jordi Paretas-Martínez
- Pareyn, C Claude Pareyn
- Parfitt, BD (B.D.Parfitt) Bruce Dale Parfitt (1952–2009)
- Parin, NV Nikolai Vasil’evich Parin
- Paris, CA (C.A.Paris) Cathy A. Paris
- Paris, JEGN Jean Édouard Gabriel Narcisse Paris (1827–1911)
- Paris, P Paul Paris
- Parish, CSP (C.S.P.Parish) Charles Samuel Pollock Parish (1822–1897)
- Parish, SB (Parish) Samuel Bonsall Parish (1838–1928)
- Park, JK Jong Kyun Park
- Park, JS Jong-Seok Park
- Park, JY Jinyoung Park
- Park, KT (K.T.Park) Kyu-Tek Park
- Park, M (Park) Mungo Park (1771–1806)
- Park, O Orlando Park
- Park, YH Yong-Ha Park
- Park, YM Young-Mi Park
- Park, YS (Y.S.Park) Yun Sil Park
- Parker, AR Andrew R. Parker
- Parker, C (C.Parker) Charles Sandbach Parker
- Parker, FS Frederick Stanley Parker
- Parker, HW Hampton Wildman Parker
- Parker, RN Richard Neville Parker (1884–1958)
- Parker, SA Shane A. Parker (1943–1992)
- Parker, TA Theodore A. Parker III (1953–1993)
- Parkes, KC Kenneth Carroll Parkes
- Parkinson, CE (C.E.Parkinson) Charles Edward Parkinson (1890–1945)
- Parkinson, J (J.Parkinson) James Parkinson (1730–18113)
- Parkinson, SC (Parkinson) Sydney Parkinson (1745–1771)
- Parks, WA William Arthur Parks (1868–1936)
- Parlatore, F (Parl.) Filippo Parlatore (1816–1877)
- Parmasto, E (Parmasto) Erast Parmasto (1928– )
- Parmelee, JA (Parmelee) John A. Parmelee (1924– )
- Parmentier, AA (Parm.) Antoine Auguste Parmentier (1737–1813)
- Parmentier, E Eric Parmentier
- Parmentier, JJG (J.Parm.) Joseph Julien Ghislain Parmentier (1755–1852)
- Parmentier, PE (P.Parm.) Paul Évariste Parmentier (1860–1941)
- Parnaby, HE Harold Edwin Parnaby
- Parnell, DR (D.R.Parn.) Dennis Richard Parnell (1939– )
- Parnmen, S (Parnmen) Sittiporn Parnmen
- Parodi, D (D.Parodi) Domingo Parodi (1823–1890)
- Parodi, LR (Parodi) Lorenzo Raimundo Parodi (1895–1966)
- Parolly, G (Parolly) Gerald Parolly (1964 – )
- Parr, AE Albert Eide Parr (1901–1991)
- Parra, A Antonio Parra (1739– )
- Parra, LE Luis Eduardo Parra Jeminez
- Parra-Olea, G Gabriela Parra-Olea
- Parra-Sánchez, E (E.Parra) Edicson Parra-Sánchez (1983– )
- Parrique, G (Parrique) Géraud Parrique (1851–1907)
- Parris, BS (Parris) Barbara Sydney Parris (1945– )
- Parris, DC David C. Parris
- Parrot, AG (A.G.Parrot) Aimé Georges Parrot (1910–1991)
- Parrott, AW Arthur W. Parrott
- Parrot, C Carl Parrot (1867–1911)
- Parry, CC Charles Christopher Parry (1823–1890)
- Parsa, A (Parsa) Ahmad Parsa (1907–1997)
- Parshall, DK David K. Parshall
- Parshuram, MS More Sandip Parshuram
- Partington, CF Charles Frederick Partington
- Parsons, MJ Michael J. Parsons
- Pasche, E (Pasche) Erich Pasche (1939– )
- Pascher, AA Adolf Alois Pascher (1881–1945)
- Paschoal, AD Adilson D. Paschoal
- Pascoe, FP Francis Polkinghorne Pascoe (1813–1893)
- Pascual Ramos, C Cristina Pascual Ramos
- Pascual Reguera, LF (Pascual) Luis Fernando Pascual Reguera (fl. 1985)
- Pasquale, GA (Pasq.) Giuseppe Antonio Pasquale (1820–1893)
- Passalacqua, NG (N.G.Passal.) Nicodemo Giuseppe Passalacqua (1966– )
- Passerin d'Entrèves, P (Passerin d'Entrèves) Pietro Passerin d'Entrèves
- Passerini, G (Pass.) Giovanni Passerini (1816–1893)
- Passin, J Jürgen Passin
- Passmore, NI Neville I. Passmore
- Passo, A (Passo) Alfredo Passo
- Passos, P Paulo Passos
- Pasteels, JJ Jean Jules Pasteels
- Pasteels, JM Jacques M. Pasteels
- Pasternak, FA Fedor Aleksandrovich Pasternak
- Pasteur, G Georges Pasteur
- Pastore, JFB José Floriano Barêa Pastore
- Pastrana, JA (Pastrana) José A. Pastrana
- Patel, BKC Bharat K.C. Patel
- Patel, CK Charmaine K. Patel
- Patil, BV (B.V. Patil) B.V. Patil
- Patil, SM (S.M. Patil) Sachin M. Patil (fl. 2018)
- Patoleta, BM Barbara Maria Patoleta
- Paton, AJ (A.J.Paton) Alan James Paton (1963– )
- Patouillard, NT (Pat.) Narcisse Théophile Patouillard (1854–1926)
- Patrick, BH Brian H. Patrick
- Patrick, TS Thomas S. Patrick
- Patrin, ELM (Patrin) Eugène Louis Melchior Patrin (1742–1815)
- Patrizi, Saverio Saverio Patrizi
- Patterson, C Colin Patterson
- Patterson, GB Geoff B. Patterson
- Patterson, TF (T.F.Patt.) Thomas F. Patterson
- Patton, WH William Hampton Patton (1853–1918)
- Patwardhan, PG (Patw.) Parashuram Gangadhar Patwardhan (1935– )
- Patzak, A (Patzak) Alois Patzak (1930– )
- Patzak, H Helmut Patzak
- Patze, CA (Patze) Carl August Patze (1808–1892)
- Pau y Español, C (Pau) Carlos Pau y Español (1857–1937)
- Paucă, AM (Paucă) Ana M. Paucă (1907–1963)
- Paukstadt, LH (L.H.Paukstadt) Laela Hayati Paukstadt
- Paukstadt, U (U.Paukstadt) Ulrich Paukstadt
- Paul, AZ Allen Z. Paul
- Paul, GS Gregory Scott Paul
- Paul, W William Paul (1822–1905)
- Paula Couto, C Carlos de Paula Couto (1910–1982)
- Paulay, G Gustav Paulay
- Paulet, JJ (Paulet) Jean Jacques Paulet (1740–1826)
- Paulian, RMA Renaud Maurice Adrien Paulian (1913–2003)
- Paulo-Maya, J Joel Paulo-Maya
- Paulsen, MJ Matthew J. Paulsen
- Paulsen, OW (Paulsen) Ove Wilhelm Paulsen (1874–1947)
- Paulson, DR Dennis R. Paulson
- Paulson, R (Paulson) Robert Paulson (1857–1935)
- Paulus, HF (Paulus) Hannes F. Paulus (1943– )
- Pauly, GB Gregory B. Pauly
- Paumkirchner, P (Paumkirchner) Petra Paumkirchner
- Pauquy, CLC (Pauquy) Charles Louis Constant Pauquy (1800–1854)
- Pauwels, OSG Olivier Sylvain Gérard Pauwels (1971– )
- Pavanelli, CS (Pavanelli) Carla Simone Pavanelli
- Pavarino, GL (Pavar.) Giovanni Luigi Pavarino (1867–1937)
- Pavelka, Petr (Pavelka) Petr Pavelka (1971– )
- Pavesi, P Pietro Pavesi (1844–1907)
- Pavlov, NV Nikolai Vasilievich Pavlov (1893–1971)
- Pavón, JA (Pav.) José Antonio Pavón (1754–1844)
- Pavón-Vázquez, CJ Carlos Joaquín Pavón-Vázquez
- Pavone, P (Pavone) Pietro Pavone (1948– )
- Pavulaan, H {Pavulaan) Harry Pavulaan
- Pawłowski, B (Pawł.) Bogumił Pawłowski (1898–1971)
- Pawson, DL David Leo Pawson
- Pawson, SM Steven M. Pawson
- Pax, FA (Pax) Ferdinand Albin Pax (1858–1942)
- Paxton, J (Paxton) Joseph Paxton (1803–1865)
- Paxton, JR John Richard Paxton (1938– )
- Paykull, G Gustaf von Paykull (1757–1826)
- Payne, RB Robert B. Payne (1938– )
- Payne, WW (W.W.Payne) Willard William Payne (1937– )
- Payraudeau, C Charles Payraudeau (1798–1865)
- Payson, EB (Payson) Edwin Blake Payson (1893–1927)
- Paz-Bermúdez, G (Paz-Berm.) Graciela Paz-Bermúdez (fl. 2001)
- Pazij, VK (Pazij) Vera Kondratievna Pazij (1909–?1992)
- Peabody, R Robert Peabody
- Peach, CW Charles William Peach (1800–1886)
- Peacock, AD Aaron D. Peacock
- Peacock, JW (J.W. Peacock) John W. Peacock
- Peale, T Titian Ramsay Peale (1799–1885)
- Pearman, JV John Victor Pearman (1887–1970)
- Pearman, M Mark Pearman
- Pearsall, RF (Pearsall) Richard F. Pearsall
- Pearse, AS (Pearse) Arthur Sperry Pearse (1877–1956)
- Pearse, JS John S. Pearse
- Pearse, VM Vicki Mabel Buchsbaum Pearse (1942- )
- Pearson, AA (A.Pearson) Arthur Anselm Pearson (1874–1954)
- Pearson, BR (B.R.Pearson) Barbara R. Pearson
- Pearson, HHW (H.Pearson) Henry Harold Welch Pearson (1870–1916)
- Pearson, J Joseph Pearson (1881–1971)
- Pearson, JC John C. Pearson
- Pearson, JT John Thomas Pearson (1801–1851)
- Pearson, NE Nathan E. Pearson (1895–1982, fl. 1920s–1930s)
- Pearson, OP Oliver Payne Pearson (1915–2003)
- Pearson, RK (R.H.Pearson) Robert Hooper Pearson (1866–1918)
- Pearson, TG (T.G.Pearson) Thomas Gilbert Pearson (1873–1943)
- Pearson, WH (Pearson) William Henry Pearson (1849–1923)
- Pease, WH William Harper Pease (1824–1871)
- Peck, CH (Peck) Charles Horton Peck (1833–1917)
- Peck, ME (M.Peck) Morton Eaton Peck (1871–1959)
- Peck, RE Raymond Elliot Peck
- Peckham, EMG (Peckham) Elizabeth Maria Gifford Peckham (1854–1940)
- Peckham, GW (Peckham) George William Peckham (1845–1914)
- Peden, AE Alexander Edward Peden
- Pedersen, HA (H.A.Pedersen) Henrik Aerenlund Pedersen (1966– )
- Pedersen, MP Michael Pepke Pedersen
- Pedersen, TM (Pedersen) Troels Myndel Pedersen (1916–2000)
- Pedler, L Lynn Pedler
- Pedley, L (Pedley) Leslie Pedley (1930– )
- Pedralli, G (Pedralli) Gilberto Pedralli (1953–2003)
- Pedraza, P (Pedraza) Paola Pedraza
- Pedro, JG (Pedro) José Gomes Pedro (1915– )
- Pedrol, J (Pedrol) Joan Pedrol (1959– )
- Peebles, RH Robert Hibbs Peebles (1900–1955)
- Peekel, G Gerhard Peekel (1876–1949)
- Peel, JS John S. Peel
- Peerally, A (Peerally) Abed Peerally
- Péfaur, JE Jaime E. Péfaur
- Pei, YL (Y.L.Pei) Yan Long Pei
- Peigler, RS (Peigler) Richard S. Peigler
- Peine, J Jörg Peine
- Peirson, JA (J.A.Peirson) Jess A. Peirson (fl. 2013)
- Peix, A Alvaro Peix
- Peixoto, AL (Peixoto) Ariane Luna Peixoto (1947– )
- Peixoto, M (M.Peixoto) Mauro Peixoto (1950– )
- Peixoto, OL Oswaldo Luiz Peixoto
- Pekarsky, O (Pekarsky) Oleg Pekarsky
- Peláez-Campomanes, P Pablo Peláez-Campomanes
- Pellegrin, F (Pellegr.) François Pellegrin (1881–1965)
- Pellegrin, J Jacques Pellegrin (1873–1944)
- Pelletier, PJ (Pellet.) Pierre Joseph Pelletier (1788–1842)
- Pellinen, MJ (Pellinen) Markku J. Pellinen
- Pellmyr, O (Pellmyr) Olle Pellmyr
- Pelseneer, JPL Jean Paul Louis Pelseneer (1863–1945)
- Pelser, PB (Pelser) Pieter B. Pelser (1976– )
- Pelz, V (Pelz) Volker Pelz
- Pelzeln, A August von Pelzeln (1825–1891)
- Pemberton, AJ Aaron J. Pemberton
- Peña, C (C.Peña) Carol Peña Hernández (1977– )
- Peña, C Carlos Peña
- Peña, JE (J.E. Peña) Jorge E. Peña
- Peñailillo Brito, P (Penail.) Patricio Peñailillo Brito (fl. 1996)
- Peñalba, JV Joshua V. Peñalba
- Peñalver, E Enrique Peñalver Mollá (1968–)
- Penard, TE Thomas Edward Penard (1878–1936)
- Penchaszadeh, PE Pablo Enrique Penchaszadeh
- Pendlebury, HM Henry Maurice Pendlebury
- Penfold, AR (A.R.Penfold) Arthur Raymond Penfold (1890– )
- Peng, CI (C.I Peng) Ching I Peng
- Peng, H (H.Peng) Hua Peng (1960– )
- Peng, LJ (L.J.Peng) Long Jin Peng
- Peng, XJ Xian-Jin Peng (1963– )
- Penhallurick, J John Penhallurick (1946–2014)
- Penland, CWT (Penland) Charles William Theodore Penland (1899–1982)
- Penna, LdA (L.A.Penna) Leonam de Azevedo Penna (1903–1979)
- Penna, M Mario Penna
- Pennant, T (Pennant) Thomas Pennant (1726–1798)
- Pennell, FW (Pennell) Francis Whittier Pennell (1886–1952)
- Penney, D David Penney
- Penney, DN David N. Penney
- Pennington, TD (T.D.Penn.) Terence Dale Pennington (1938– )
- Pennisi, A Angelo Pennisi
- Penny, G (Penny) George Penny ( –1838)
- Penny, M Malcolm Penny
- Penny, ND Norman Dale Penny (1946–2016)
- Penrith, M-L Mary-Louise Penrith
- Penteado-Dias, AM Angelica Maria Penteado-Dias
- Penz, CM Carla Maria Penz
- Pénzes, A (Pénzes) Antal Pénzes (1895–1984)
- Penzig, AJO (Penz.) Albert Julius Otto Penzig (1856–1929)
- Pépin, PD Pierre Denis Pépin (1802–1876)
- Pepinelli, M Mateus Pepinelli
- Peracca, MG Mario Giacinto Peracca (1861–1923)
- Peragallo, FH (H.Perag.) Frédéric Hippolyte Peragallo ((1851–1921)
- Peragallo, MA (Perag.) Maurice Alexandre Peragallo (1853–1931)
- Peralta, IE (Peralta) Iris Edith Peralta (1960– )
- Peralta, M Marcela Alejandra Peralta
- Peralta, P Paola Peralta
- Percheron, AR Achille Rémy Percheron (1797–1869)
- Perdices, A Anabel Perdices
- Perdomo, G (Perdomo) Giselle Perdomo
- Perdue, RE (Perdue) Robert Edward Perdue, Jr. (1924– )
- Pereira Júnior, AM Antonio Marques Pereira Júnior
- Pereira, EHL Edson Henrique Lopes Pereira
- Pereira, G Guido Pereira
- Pereira, JBS (J.B.S.Pereira) Jovani Bernardino de Souza Pereira (1984– )
- Pereira, SL Sérgio Luiz Pereira
- Perekrasnov, AA (Perekrasnov) Alexander A. Perekrasnov
- Perepetshajenko, VL Vladimir Leonidovich Perepetshajenko
- Peres, GEP (Peres) Generosa Emília Pontual Peres
- Pérez, GA Gustavo A. Pérez
- Pérez, L Leonardo Pérez
- Pérez González, A Abel Pérez-González
- Pérez-Moreno, BP Bernardino P. Pérez-Moreno
- Pérez-López, FJ Francisco Javier Pérez-López
- Pérez-Vargas, I. (Pérez-Varg.) Israel Pérez-Vargas
- Pérez de la Rosa, JA (Pérez de la Rosa) Jorge A. Pérez de la Rosa
- Pérez Chiscano, JL (Pérez-Chis) José Luis Pérez Chiscano (1930– )
- Pérez-Emán, JL Jorge L. Pérez-Emán
- Pérez-Escobar, OA (O.Pérez) Oscar Alejandro Pérez-Escobar
- Pérez-Hernández, R Roger Pérez-Hernández
- Pérez-Moreau, R.A. (Pérez-Mor.) Román A. Pérez-Moreau (1905–1971)
- Pérez-Pérez, RE (R.E.Pérez) Rosa Emilia Pérez-Pérez
- Pérez-Ortega, S (Pérez-Ortega) Sergio Pérez-Ortega
- Perfiljev, IA (Perfil.) Ivan Aleksandrovich Perfiljev (1882–1942)
- Perfiljev, BV (B.V.Perfil.) Boris Vasilievich Perfiljev (1891—1969)
- Perfiljev, PP (P.P.Perfiljev) Petr Pavlovich Perfiljev (1897—1977)
- Pergande, T Theodore Pergande (1840–1916)
- Péricart, J Jean Péricart (1928–2011)
- Pericás, JJ (Pericás) Joan J. Pericás (fl. 1987)
- Péringuey, LA Louis Albert Péringuey (1855–1924)
- Peris, JB (Peris) Juan Bautista Peris (1946– )
- Perkins, EM (E.M. Perkins) Edwin M. Perkins
- Perkins, PD (P.D. Perkins) Philip Don Perkins
- Perkins, RCL Robert Cyril Layton Perkins (1866–1955)
- Perkins, SF (S.F. Perkins) Stephen F. Perkins
- Perko, ML Michael Lorenz Perko
- Perle, A Altangerel Perle (1945– )
- Perleb, KJ (Perleb) Karl Julius Perleb (1794–1845)
- Perner, H (Perner) Holger Perner
- Perner, J Jaroslaus Perner (1969– )
- Pernetta, JC John C. Pernetta
- Péron, FA François Auguste Péron (1775–1810)
- Perpenti, H (Perp.) Helena Perpenti (1764–1846)
- Perrault, GH Gérard H. Perrault
- Perreau, M (Perreau) Michel Perreau
- Perret, J Jean-Luc Perret
- Perrichot, V Vincent Perrichot
- Perrie, LR (Perrie) Leon R. Perrie
- Perrier, E Edmond Perrier (1844–1921)
- Perrier, V Vincent Perrier
- Perrier de la Bâthie, EP (E.P.Perrier) Eugène Pierre Perrier de la Bâthie (1825–1916)
- Perrier de la Bâthie, H (H.Perrier) Henri Perrier de la Bâthie (1873–1958)
- Perrin, H Hélène Perrin
- Perrine, H (Perrine) Henry Perrine (1797–1840)
- Perris, JP Jean Pierre Omer Anne Édouard Perris (1808–1878)
- Perrottet, GS (Perr.) George Samuel Perrottet (1793–1870)
- Perroud, BP Benoit-Philibert Perroud (1796–1887)
- Perry, BA Brian A. Perry
- Perry, G George Perry
- Perry, LM (L.M.Perry) Lily May Perry (1895–1992)
- Perry, RH Robert H. Perry
- Perschke, T (Perschke) Tobias Perschke (1965–2006)
- Persoon, CH (Pers.) Christiaan Hendrik Persoon (1761–1836)
- Persoon, JGM (J.G.M.Pers.) Johannes Gerardius Maris Persoon (1956– )
- Persson, A Arne Persson
- Persson, J (Jim.Perss.) Jimmy Persson (1942– )
- Persson, K (K.Perss.) Karin Persson (1938– )
- Persson, NPH (Perss.) Nathan Petter Herman Persson (1893–1978)
- Perty, JAM (Perty) Josef Anton Maximilian Perty (1804–1884)
- Perugia, A Alberto Perugia
- Peruzzi, L (Peruzzi) Lorenzo Peruzzi (1975– )
- Pervez, A (A.Pervez) Ahmad Pervez
- Pervez, O (O.Pervez) Omkar Pervez
- Pesarini, C Carlo Pesarini
- Pesce, GL Giuseppe L. Pesce
- Peschkova, GA (Peschkova) Galina Aleksandrovna Peschkova (1930–2018)
- Pescott, EE (Pescott) Edward Edgar Pescott (1872–1954)
- Pešić, V (Pešić) Vladimir Pešić
- Peşmen, H (Peşmen) Hasan Peşmen (1939–1980)
- Pessagno Jr., EA Emile A. Pessagno, Jr.
- Pessôa, A (Pessôa) Antônio Pessôa
- Pesta, O Otto Pesta (1885–1974)
- Pestalozzi, JA (Pestal.) J. Anton Pestalozzi (1871–1937)
- Petagna, V Vincenzo Petagna (1734–1810)
- Petch, T (Petch) Thomas Petch (1870–1948)
- Petchleung, A (Petchl.) Aree Petchleung
- Petényi, SJ Salamon János Petényi
- Peter, A Albert Peter (1853–1937)
- Peter, E (E.Peter) Elfriede Peter (1905– )
- Peter, R (R.Peter) Robert Peter (1805–1894)
- Peter, R Ruedi Peter
- Petermann, WL (Peterm.) Wilhelm Ludwig Petermann (1806–1855)
- Peters, J (J.Peters) Jule Peters (1980– )
- Peters, JA James Arthur Peters (1922–1972)
- Peters, JL James Lee Peters (1889–1952)
- Peters, MK Marcell K. Peters
- Peters, WCH (Peters) Wilhelm Carl Hartwig Peters (1815–1883)
- Petersen, B Björn Petersen
- Petersen, B Borge Petersen
- Petersen, G (G.Petersen) Gitte Petersen (1963– )
- Petersen, G Günther Petersen (1924– )
- Petersen, LE Lee E. Petersen
- Petersen, M Michael Petersen
- Petersen, OG (Petersen) Otto Georg Petersen (1847–1937)
- Petersen, RH (R.H.Petersen) Ronald H. Petersen (1934– )
- Petersen, WKF Wilhelm Konstantin Frommhold Petersen (1854–1933)
- Peterson, AT Andrew Townsend Peterson
- Peterson, EB (E.B. Peterson) Eric B. Peterson (fl. 2000)
- Peterson, HW H.W. Peterson
- Peterson, PM (P.M.Peterson) Paul M. Peterson (1954– )
- Peterson, RL Randolph L. Peterson
- Peterson, RM Rex M. Peterson
- Peterson, RS (R.S.Peterson) Roger S. Peterson (fl. 1963)
- Pethiyagoda, R Rohan Pethiyagoda
- Petit, EMA (E.M.A.Petit) Ernest Marie Antoine Petit (1927–2007)
- Petit, F (F.Petit) Félix Petit (fl. 1829)
- Petit, N Nicholas Petit (1777–1804)
- Petitmengin, MGC (Petitm.) Marcel Georges Charles Petitmengin (1881–1908)
- Petiver, J (Petiver) James Petiver (1658–1718)
- Petkovski, TK Trajan Kiril Petkovski
- Petrak, F (Petr.) Franz Petrak (1886–1973)
- Petranka, JW James W. Petranka
- Petrescu, I Iorgu Petrescu
- Petri, K Karl Petri (1852–1932)
- Petrie, D Donald Petrie (1846–1925)
- Petrov, PN (Petrov) Peter Nikolaevich Petrov
- Petrova, AV (Petrova) Ana V. Petrova (fl. 1973)
- Petrovič, S (Petrovič) Sava Petrovič (1839–1889)
- Petrovitz, R (Petrovitz) Rudolf Petrovitz
- Petrovsky, V.V. (V.V.Petrovsky) V.V. Petrovsky (1930– )
- Petru, M (Petru) Miloslav Petrů
- Petrunkevitch, AI Alexander Ivanovitch Petrunkevitch (1875–1964)
- Petrushevskaya, MG Maria G. Petrushevskaya
- Petter, F Franz Petter (1798–1853)
- Petter-Rousseaux, A
- Pettersson, B (B.Pett.) Bengt Pettersson (1915– )
- Pettersson, B (Börge Pett.) Börge Pettersson
- Pettersson, BJ (Pett.) Bror Johan Pettersson (1895–1957)
- Pettey, FW Franklin William Pettey (1888– ?)
- Pettit, A (Pettit) Auguste Pettit (1869–1939)
- Pettit, G Gary Pettit
- Pettit, J Jean Pettit
- Pettit, RE (R.E.Pettit) Robert Eugene Pettit (1928–)
- Pettit, RF (R.F.Pettit) Rufus Hiram Pettit (1869–1946)
- Petuch, EJ Edward James Petuch (1949– )
- Petutschnig, W (Petut.) W. Petutschnig
- Petzold, E (Petz.) Eduard Petzold (1815–1891)
- Peyerimhoff, H Henri de Peyerimhoff (1838–1877)
- Peyerimhoff, P (Peyerimh.) Paul de Peyerimhoff de Fontenelle (1873–1957)
- Peypouquet, J-P Jean-Pierre Peypouquet
- Peyritsch, JJ (Peyr.) Johann Joseph Peyritsch (1835–1889)
- Peyronel, B (Peyronel) Beniamino Peyronel (1890–1975)
- Peyton, EL EL Peyton (1929–1999)
- Pfeffer, WFP (Pfeff.) Wilhelm Friedrich Philipp Pfeffer (1845–1920)
- Pfeifer, HW (Pfeifer) Howard William Pfeifer (1928–2009)
- Pfeiffer, CM C. Michael Pfeiffer
- Pfeiffer, H (H.Pfeiff.) Hans Heinrich Pfeiffer (1890– )
- Pfeiffer, L (L.Pfeiff.) Ludwig Pfeiffer (1842–1921)
- Pfeiffer, LKG (Pfeiff.) Ludwig Karl Georg Pfeiffer (1805–1877)
- Pfeiffer, NE (N.Pfeiff.) Norma Etta Pfeiffer (1889– )
- Pfeil, BE (B.E.Pfeil) Bernard E. Pfeil
- Pfennig, H (Pfennig) Horst Pfennig (1933–1994)
- Pfister, DH (Pfister) Donald Henry Pfister (1945– )
- Pfitzer, EHH (Pfitzer) Ernst Hugo Heinrich Pfitzer (1846–1906)
- Pfosser, M (Pfosser) Martin Pfosser (1958– )
- Pfrender, ME Michael E. Pfrender
- Pfuhl, FCA (Pfuhl) Fritz C.A. Pfuhl (1853–1913)
- Phaff, HJ (Phaff) Herman Jan Phaff (1913–2001)
- Phasuk, J (Phasuk) Jumnongjit Phasuk
- Phelps, J (J.Phelps) Jacob Phelps (fl. 2014)
- Phelps, WH William Henry Phelps, Sr (1875–1965)
- Phelps, WH William Henry Phelps, Jr (1902–1988)
- Philcox, D David Philcox (1926–2003)
- Philipp, KM Kai M. Philipp
- Philipp, NA Nicholas A. Philipp
- Philippen, H Hans-Dieter Philippen
- Philippi, F (F.Phil.) Friedrich Heinrich Eunom Philippi (1838–1910)
- Philippi, RA (Phil.) Rodolfo Amando Philippi (1808–1904)
- Philippi Bañados, RA Rodulfo Amando Philippi Bañados (1905–1969)
- Philips, TK T. Keith Philips
- Philipson, WR William Raymond Philipson (1911–1997)
- Phillipps, WJ William J. Phillipps (1893–1967)
- Phillips, AM (A.M.Phillips) Arthur M. Phillips (1947– )
- Phillips, AR Allan Robert Phillips (1914–1996)
- Phillips, CJ Carleton J. Phillips
- Phillips, EP (E.Phillips) Edwin Percy Phillips (1884–1967)
- Phillips, JC John Charles Phillips (1876–1938)
- Phillips, LL (L.Ll.Phillips) Lyle Llewellyn Phillips (1923– )
- Phillips, RW Robert W. Phillips
- Phillips, SM (S.M.Phillips) Sylvia Mabel Phillips (1945– )
- Phillips, W (W.Phillips) William Phillips (1822–1905)
- Phillipson, PB (Philllipson) Peter B. Phillipson (1957– )
- Phillips-Rodriguez, E (Phillips) Eugenie Phillips-Rodríguez
- Philpott, A Alfred Philpott (1870–1930)
- Phinney, HK (H.K.Phinney) Harry Kenyon Phinney (1918–1990)
- Phipps, CJ Constantine John Phipps (1744–1792)
- Phipps, JB (J.B.Phipps) James Bird Phipps (1934– )
- Phitos, D (Phitos) Dimitrios Phitos (1930– )
- Phongsa, K Koneuma Phongsa
- Phousavanh, P Phouvin Phousavanh
- Phukan, S (Phukan) Sandhyajyoti Phukan (1950– )
- Piacentini, V.Q. Vítor de Queiroz Piacentini
- Piani, P Piero Piani
- Pic, M Maurice Pic (1866–1957)
- Picado, C (Picado) C. Picado
- Picard, F (F.Picard) François Picard (1879–1939)
- Picci, V (V.Picci) Vincenzo Picci (1929– )
- Piccioli, G (G.Piccioli) Giuseppe Piccioli
- Picco, V (Picco) Vittorio Picco (fl. 1788)
- Pichi-Sermolli, REG (Pic.Serm.) Rodolfo Emilio Giuseppe Pichi-Sermolli (1912–2005)
- Pichon, M Marcel Pichon (1921–1954)
- Pichorim, M Mauro Pichorim
- Pickard-Cambridge, FO Frederick Octavius Pickard-Cambridge (1860–1905)
- Pickard-Cambridge, O Octavius Pickard-Cambridge (1828–1917)
- Pickel, BJ (Pickel) Bento José Pickel (1906–1963)
- Picker, MD Mike D. Picker
- Pickering, C (Pickering) Charles Pickering (1805–1878)
- Pickering, J (J.Pickering) J. Pickering
- Pickersgill, M Martin Pickersgill
- Pictet de La Rive, FJ (Pictet) François Jules Pictet de La Rive (1809–1872)
- Pidinchedda, E Ermanno Pidinchedda
- Pienaar, U de V Uys de Villiers Pienaar
- Piepers, MC Murinus Cornelis Piepers ( –1919)
- Pierantoni, PP [Pietro Paolo Pierantoni]] (19..–)
- Pierantoni, U [Umberto Pierantoni]] (1876–1959)
- Pierce, DW William Dwight Pierce (1881–1967)
- Pierpoint, CJ C.J. Pierpoint
- Pierre, J (J. Pierre) Jacques Pierre
- Pierre, JBL (Pierre) Jean Baptiste Louis Pierre (1833–1905)
- Pierre, JI (J.I.Pierre) Joachim Isidore Pierre (1812–1881)
- Pierre, L (L.Pierre) L. Pierre
- Pierre-Baltus, C Claude Pierre-Baltus
- Piers, F Frank Piers
- Pietrzeniuk, E Erika Pietrzeniuk (1935–2015)
- Pietsch, TW Theodore W. Pietsch
- Pietschmann, M (Pietschm.) M. Pietschmann
- Pietschmann, V Viktor Pietschmann (1881–1956)
- Pigg, KB Kathleen B. Pigg
- Pignatti, S (Pignatti) Sandro Pignatti (1930– )
- Pigott, CD (Pigott) Christopher Donald Pigott (1928– )
- Piin-Aaspõllu, T (Piin) Taimi Piin-Aaspõllu
- Piippo, Sinikka (Piippo) Sinikka Piippo (1955– )
- Pike, LH (L.H.Pike) Lawrence Herbert Pike
- Pike, RB (R.B.Pike) Radcliffe Barnes Pike (1903– )
- Pike, RB (Rich.B.Pike) Richard Billington Pike (1939– )
- Pike, RB Richard Bevis Pike (1911– )
- Pilát, A (Pilát) Albert Pilát (1903–1974)
- Pilato, G Giovanni Pilato
- Pilbeam, JW John William Pilbeam (1931– )
- Pilger, RKF (Pilg.) Robert Knud Friedrich Pilger (1876–1953)
- Pilgrim, EM Erik M. Pilgrim
- Pilgrim, RLC Robert Louis Cecil Pilgrim
- Pilipenko, FS (Pilip.) Fedor Semenovich Pilipenko (1913–1980)
- Pillai, RS Raghavan Sridharan Pillai
- Pillans, NS (Pillans) Neville Stuart Pillans (1884–1964)
- Pillay, N Neville Pillay
- Piller, M Mathias Piller (1733–1788)
- Pils, G Gerhard Pils
- Pilsbry, HA Henry Augustus Pilsbry (1862–1957)
- Pilz, GE (Pilz) George Edmund Pilz (1942– )
- Pimenov, GM (G.M.Pimenov) Georgij Mikhailovich Pimenov (1955–1988)
- Pimenov, MG (Pimenov) Michael Georgievich Pimenov (1937–)
- Pimenta, BVS Bruno Vergueiro Silva Pimenta
- Pimentel, T Therezinha de Jesus Pimentel Chaves
- Pimvichai, P Piyatida Pimvichai
- Piñas, F (Piñas) Francisco Piñas
- Pinchuk, VI (Pinchuk) Vitaliy Iustynovych Pinchuk (1931–1992)
- Pine, L Leo Pine
- Pinheiro, F (F.Pinheiro) Fábio Pinheiro
- Pinhey, ECG Elliot C.G. Pinhey (1910–1999)
- Pinkaew, K Khwanruan Pinkaew
- Pinkaew, N (Pinkaew) Nantasak Pinkaew
- Pinkava, DJ (Pinkava) Donald John Pinkava (1933– )
- Pinker, R Rudolf Pinker (1905–1987)
- Pinna, D (Pinna) Daniela Pinna
- Pinna, G Giovanni Pinna (1939–)
- Pino, G (Pino) Guillermo Pino
- Pinokiyo, A (Pinokiyo) Athokpam Pinokiyo (fl. 2006)
- Pinou, T Theadora Pinou
- Pintner, P Theodor Pintner (1857–1942)
- Pinto, AP Ângelo Parise Pinto
- Pinto, C (C.Pinto) Cesar Pinto (1894–1964)
- Pinto, ID Irajá Damiani Pinto (1919–2014)
- Pinto, JD John D. Pinto
- Pinto, OM Oliverio Mario Pinto (1896–1981)
- Pinto, RL Ricardo L. Pinto
- Pinto da Silva, AR (P.Silva) António Rodrigo Pinto da Silva (1912–1992)
- Pinton, A Aurélie Pinton
- Pinzari, F (Pinzari) Flavia Pinzari (19..– )
- Pînzari, SL (Pînzari) Semion Leonovici Pînzari (19..– )
- Pinzaru, P (Pînzaru) Pavel Pînzaru (1959– )
- Pinzón, JP (Pinzón) Juan Pablo Pinzón (fl. 2012)
- Piovesan, EK Enelise Katia Piovesan
- Piper, CV (Piper) Charles Vancouver Piper (1867–1926)
- Pipik, R Radovan Pipik
- Pipoly, JJ (Pipoly) John James Pipoly III (1955– )
- Pippen, RW (Pippen) Richard W. Pippen (1935– )
- Pirani, JR (Pirani) José Rubens Pirani (1958– )
- Pires, AMS Ana Maria S. Pires
- Pires, JC (J.C.Pires) Joseph Christopher Pires (1967– )
- Pires, JM (Pires) João Murça Pires (1916–1994)
- Pires, MRS Maria Rita Silvério Pires
- Pires de Lima, A (Pires de Lima) Américo Pires de Lima (1886–1966)
- Pirie, M (Pirie) Michael D. Pirie (fl. 2003)
- Pirozynski, KA (Piroz.) Kris A. Pirozynski
- Pisarski, B Bohdan Pisarski
- Pischedda, M Marina Pischedda
- Piskurek, O Oliver Piskurek
- Pišút, I (Pišút) Ivan Pišút (1935– )
- Pitard, CMP (Pit.) Charles-Joseph Marie Pitard (1873–1927)
- Pitcher, D David Pitcher
- Pitkin, BR Brian Roy Pitkin
- Pitkin, LM Linda M. Pitkin
- Pitot, AAL (Pitot) Albert Auguste Louis Pitot (1905–1974)
- Pittendrigh, CS (Pittendr.) Colin Stephenson Pittendrigh (1918–1996)
- Pittier, HF (Pittier) Henri François Pittier 1857–1950
- Pittino, R Riccardo Pittino
- Piwczyński, M (Piwczyński) Marcin Piwczyński (fl. 2015)
- Piza, S de T Salvador de Toledo Piza Júnior (1898–1988)
- Plakidas, JD John Dennis Plakidas
- Plamoottil, M Mathews Plamoottil
- Plana, V Vanessa Plana
- Planchon, G (G.Planch.) Gustav Planchon (1833–1900)
- Planchon, JE (Planch.) Jules Émile Planchon (1823–1888)
- Planchuelo, AM (Planchuelo) Ana María Planchuelo (1945– )
- Planellas, J (Planellas) José Planellas Giralt (1821–1888)
- Planer, JJ (Planer) Johann Jacob Planer (1743–1789)
- Planes, S Serge Planes
- Planet, L-M Louis-Marie Planet
- Plant, AR (Plant) Adrian R. Plant
- Plante, J Jacques Plante
- Plante, R Raphaël Plante
- Plantrou, J Jacques Plantrou
- Plas, Fvd (Plas) F. van der Plas (fl. 1070)
- Plassmann, E Eberhard Plassmann (1938–2014)
- Plastani, MS María Sofía Plastani
- Platania, L Leonardo Platania
- Plate, LH Ludwig Hermann Plate (1862–1937)
- Plath, M Mirco Plath
- Platia, G (Platia) Giuseppe Platia
- Platnick, NI Norman Ira Platnick
- Platz, JE James Ernest Platz
- Plavilstshchikov, NN Nikolay Nikolaevich Plavilstshchikov (1892–1962)
- Playfair, RL Robert Lambert Playfair (1828–1899)
- Plaza, E Esperanza Plaza (1949–1988)
- Pleijel, F Fredrik Pleijel
- Pletnev, VA (Pletnev) Vladimir A. Pletnev
- Plitt, CC (Plitt) Charles Christian Plitt (1869–1933)
- Pljushtch, IG (Pljushtch or Pljushch) Igor G. Pljushtch (Igor G. Pljushch)
- Ploeg, A Alex Ploeg
- Plongsesthee, R Rungthip Plongsesthee
- Plöttner, T (Plöttn.) Traugott Plöttner (1853–1923)
- Plötz, C (Plötz) Carl Plötz (1814–1886)
- Plowes, DCH (Plowes) Darrel Charles Herbert Plowes
- Plowman, TC (Plowman) Timothy Charles Plowman (1944–1989)
- Plowright, CB (Plowr.) Charles Bagge Plowright (1849–1910)
- Plumhoff, F Friedrich Plumhoff (1928–1989)
- Plumier, C (Plum.) Charles Plumier (1646–1704)
- Plummer, FB Frederick Byron Plummer (1885–1947)
- Plümper, M (Plümper) M. Plümper
- Plunkett, GM (G.M.Plunkett) Gregory M. Plunkett (1965– )
- Plunkett, OA (Plunkett) Orda Allen Plunkett (1897– )
- Pobedimova, EG (Pobed.) Eugenia Georgievna Pobedimova (1898–1973)
- Poche, F (Poche) Franz Poche (1879–1945)
- Pocock, MA Mary Agard Pocock (1886–1977)
- Pocock, RI Reginald Innes Pocock (1863–1947)
- Pócs, T (Pócs) Tamás Pócs (1933– )
- Poda, N Nikolaus Poda von Neuhaus (1723–1798)
- Podaný, C Čenek Podaný (1919–1980)
- Podlech, D (Podlech) Dietrich Podlech (1931– )
- Podlipaev, SA (Podlipaev) Sergei Anatolievich Podlipaev (1947–2004)
- Podpěra, J (Podp.) Josef Podpěra (1878–1954)
- Poellnitz, K (Poelln.) Karl von Poellnitz (1896–1945)
- Poelman, EH Erik H. Poelman
- Poelt, J Josef Poelt (1924–1995)
- Poengsungnoen, V (Poengs.) Vasun Poengsungnoen
- Poeppig, EF (Poepp.) Eduard Friedrich Poeppig (1798–1868)
- Poetsch, IS (Poetsch) Ignaz Sigismund Poetsch (1823–1884)
- Poeverlein, H (Poeverl.) Hermann Poeverlein (1874–1957)
- Poey y Aloy, F Felipe Poey y Aloy (1799–1891)
- Poggenburg, JF (Poggenb.) Justus Ferdinand Poggenburg (1840–1893)
- Pogue, MG (Pogue) Michael G. Pogue
- Pohl, H Hans Pohl
- Pohl, JBE (Pohl) Johann Baptist Emanuel Pohl (1782–1834)
- Pohl, RW (R.W.Pohl) Richard Walter Pohl (1916–1993)
- Pohle, RR (Pohle) Richard Richardowitsch Pohle (1869–1926)
- Poinar, GO George Orlo Poinar, Jr.
- Poirault, JPF (Poirault) Jules Pierre François Poirault (1830–1907)
- Poiret, JLM (Poir.) Jean Louis Marie Poiret (1755–1834)
- Poisson, HL (Poiss.) Henri Louis Poisson (1877–1963)
- Poisson, J (J.Poiss.) Jules Poisson (1833–1919)
- Poiteau, PA (Poit.) Pierre-Antoine Poiteau (1766–1854)
- Pojarkova, AI (Pojark.) Antonina Ivanovna Pojarkova (1897–1980)
- Pokhialaĭnen, VP Vladimir Petrovich Pokhialaĭnen 1933– )
- Pokorný, S Svatopluk Pokorný
- Pokorný, V Vladimír Pokorný (1922–1989)
- Pokrovskaya, NV Nina Vasilevna Pokrovskaya (1916–1985)
- Pokrovsky, VV V.V. Pokrovsky
- Pokryszko, BM Beata M. Pokryszko
- Pola, M Marta Pola
- Polakowski, H (Pol.) Hellmuth Polakowski (1847–1917)
- Polaszek, A (Polaszek) Andrew Polaszek
- Polatschek, A Adolf Polatschek (1932– )
- Pole, MS Michael S. Pole
- Pole-Evans, IB Illtyd Buller Pole-Evans (1879–1968)
- Polegatto, CM Cleber Macedo Polegatto
- Polenova, EN Elena Nikolaevna Polenova
- Polhemus, DA (D.A. Polhemus) Dan A. Polhemus
- Polhemus, JT (J.T. Polhemus) John T. Polhemus
- Polhill, RM (Polhill) Roger Marcus Polhill (1937– )
- Poli, GS Giuseppe Saverio Poli (1746–1825)
- Polishchuk, VV Vitaliy Vladimirovich Polishchuk (1934–1999)
- Poljakov, PP Petr Petrovich Poljakov (1902–1974)
- Poll, MFL Max Fernand Leon Poll (1908–1991)
- Pollard, CL Charles Louis Pollard (1872–1945)
- Pollard, GE (G.E.Pollard) Glenn E. Pollard (1901–1976)
- Pollen, FPL François P. L. Pollen (1842–1886)
- Pollet, M Marc Pollet
- Pollich, JA (Pollich) Johann Adam Pollich (1740–1780)
- Pollini, C (Pollini) Ciro Pollini (1782–1833)
- Pollmann, A (Pollmann) August Pollmann (1813–1898)
- Pollock, DA Darren A. Pollock
- Pollock, LW Leland Wells Pollock (1943–)
- Pollock, SH (S.H.Pollock) Steven Hayden Pollock (1947–1981)
- Polozova, AN (A.N.Polozova) Anastasia Nikolaevna Polozova (1931–)
- Polozova, NL (Polozova) Nina Leonidovna Polozova (1940–2017)
- Polunin, NV (Polunin) Nicholas Vladimir Polunin (1909–1997)
- Polyiam, W (Polyiam) Wetchasart Polyiam
- Pombal, Jr., JP José Perez Pombal Júnior
- Pomel, AN (Pomel) Auguste Nicolas Pomel (1821–1898)
- Pomerantzev, BI (Pomerantzev) Boris Ivanovich Pomerantzev (1903–1939)
- Pomerleau, R (Pomerl.) René Pomerleau (1904–1993)
- Pomorski, RJ Romuald Jacek Pomorski
- Pompeckj, JF Josef Felix Pompeckj (1867–1930)
- Ponce, E Elias Ponce
- Ponce, M (Marisela Ponce Marisela Ponce (1950– )
- Ponce, MM (Ponce) Marta Mónica Ponce (1954– )
- Ponce-Ulloa, HE Hugo E. Ponce-Ulloa
- Poncy, O (Poncy) Odile Poncy
- Ponder, WF Winston F. Ponder
- Ponert, J (Ponert) Jiří Ponert (1937– )
- Pongrácz, S Sándor Pongrácz (1888–1945)
- Ponomarenko, AG Alexander Georgievich Ponomarenko (1938– )
- Ponomarenko, MG Margarita Gennadievna Ponomarenko (1962– )
- Ponomarenko, VV Vladimir Vasilievich Ponomarenko (1938–2013)
- Ponomarev, AV Alexander Viktorovich Ponomarev
- Pons, AR Adolfo R. Pons
- Pons, G Guillem X. Pons (1964– )
- Pons Muñoz, JM José María Pons Muñoz
- Pont, AC (Pont) Adrian C. Pont
- Pontecorvo, C (Pontec.) Cristiano Pontecorvo (1971– )
- Pontioroli, A (Pontiroli) Aida Pontiroli (1919– )
- Pontopiddan, E Erik Pontoppidan (1698–1764)
- Pontual, FP Francisco Boavista Pontual
- Ponza, L Lorenzo Ponza (1777–1811)
- Ponzetti, J (Ponzetti) Jeanne Ponzetti
- Ponzo, A (Ponzo) Antonio Ponzo (1876–1944)
- Pool, A (A.Pool) Amy Pool
- Poole, CM Colin M. Poole
- Poole, RW Robert W. Poole
- Pooni, HS Harjit Singh Pooni
- Poonyth, AD (Poonyth) Asha D. Poonyth
- Pooprang, T (Pooprang) Thitiporn Pooprang
- Poorani, J Janakiraman Poorani
- Poore, GCB Gary C.B. Poore (1944– )
- Poormahdi, S (Poormahdi) Sareh Poormahdi (fl. 2008)
- Poorten, van der D (van der Poorten) Dirk van der Poorten
- Pop, VV Victor V. Pop (1903–1976)
- Pope, CH Clifford Hillhouse Pope (1899–1974)
- Pope, RD Robert D. Pope
- Poplavskaja, HI (Popl.) Henrietta Ippolitovna Poplavskaja (1885–1956)
- Popofsky, AWK Arthur Willy Karl Popofsky
- Popov, AM (A.M.Popov) Alexander Mikhailovich Popov (1943–)
- Popov, AM (An.M.Popov) Anatolij Mikhailovich Popov (1902–1942)
- Popov, AV (A.V.Popov) Andrian Vasilievich Popov (1931–)
- Popov, EV (E.V.Popov) Evgeny Valerievich Popov (1974–)
- Popov, GB (G.B.Popov) George Basil Popov (1922–1998)
- Popov, GI (G.I.Popov) Gennadij Ivanovich Popov (1913–1980)
- Popov, GV (G.V.Popov) Grigory Vladlenovich Popov (1972–)
- Popov, LE (L.E.Popov) Leonid Evgenievich Popov (1950–)
- Popov, MG (Popov) Mikhail Grigorievich Popov (1893–1955)
- Popov, NP (N.P.Popov) Nikolai Petrovich Popov (1884–1948)
- Popov, NP (N.P.Popov) Nikolaj Petrovich Popov (1893–1960)
- Popov, PP (P.P.Popov) Petr Petrovich Popov (1888–1964)
- Popov, SV (S.V.Popov) Sergei Valentinovich Popov (1945–)
- Popov, TI (T.I.Popov) Timofej Ivanovich Popov (1890–1963)
- Popov, VD (V.D.Popov) Vladimir Danilovich Popov (1935–)
- Popov, VK (V.K.Popov) Vladimir Konstantinovich Popov (1892–1931)
- Popov, VN (V.N.Popov) Vasilij Nikolaevich Popov (1974–)
- Popov, VV (V.V.Popov) Vladimir Veniaminovich Popov (1902–1960)
- Popov, YuA (Yu.A.Popov) Yuri Alexandrovich Popov (1936–2016)
- Popov, YuN (Yu.N.Popov) Yuri Nikolaevich Popov (1894–1977)
- Popova, EY (E.Y.Popova) Ekaterina Y. Popova (19..–)
- Popova, GM (G.M.Popova) Galina Mikhailovna Popova (1895–?)
- Popova, KA (K.A.Popova) Klavdia Alexeevna Popova (19..–)
- Popova, LI (L.I.Popova) Lidia Ivanovna Popova (1930–2020)
- Popova, MT (M.T.Popova) Maria Todorova Popova (1932–2019)
- Popova, SM (S.M.Popova) Svetlana Mikhailovna Popova (1929–)
- Popova, SS (S.S.Popova) Svetlana Sergeevna Popova (1980–)
- Popova, TI (T.I.Popova) Tamara Ignatievna Popova (1913–1992)
- Popova, TN (T.N.Popova) Tamara Nikitichna Popova (1940–2007)
- Popova, TG (T.G.Popova) Tatiana Grigorievna Popova (1898–1982)
- Popova, ZG (Z.G.Popova) Zoya Georgievna Popova (1921–1996)
- Popova, ZG (Z.Gavr.Popova) Zoya Gavrilovna Popova (1915–?)
- Popova-Lvova, MG Marina Georgievna Popova-Lvova (1935–)
- Poppius, BR Bertil Robert Poppius (1876–1916)
- Popta, CML Canna Maria Louise Popta (1860–1929)
- Porco, D David Porco
- Porembski, S (Porembski) Stefan Porembski
- Porion, T Thierry Porion
- Poroca, DJM (Poroca) Danuza José Muniz Poroca (1942– )
- Porras, LW Louis W. Porras
- Porsch, O (Porsch) Otto Porsch (1875–1959)
- Porsild, AE (A.E.Porsild) Alf Erling Porsild (1901–1977)
- Porsild, MP Morton Pedersen Porsild (1872–1956)
- Porta, A Antonio Porta
- Porta, P Pietro Porta (1832–1923)
- Porte, WS (Porte) William Solomon Porte (1891– )
- Portenschlag-Ledermayer, F (Port.) Franz von Portenschlag-Ledermayer (1772–1822)
- Porter, CL (Ced.Porter) Cedric Lambert Porter (1905–2000)
- Porter, CL (Ch.Porter) Charles Lyman Porter (1889– )
- Porter, DM (D.M.Porter) Duncan MacNair Porter (1937– )
- Porter, JM (J.M.Porter) James Mark Porter (1956– )
- Porter, TC Thomas Conrad Porter (1822–1901)
- Portères, R (Portères) Roland Portères (1906–1974)
- Portes, CEB Carlos Eduardo B. Portes
- Portevin, G Gaston Portevin (1869–1946)
- Portilla, J (J.Portilla) José Portilla (1966– )
- Porto, PC (Porto) Paulo Campos Porto (1889–1968)
- Portschinsky, JA Josef Aloizievitsch Portschinsky (1848–1916)
- Poryadina, LN (Poryadina) Lena Nikolaevna Poryadina
- Porzecanski, AL Ana Luz Porzecanski
- Posada-Arango, A (Posada-Ar.) Andres Posada-Arango (1859–1923)
- Poschmann, M Markus Poschmann
- Poselger, H (Poselg.) Heinrich Poselger (1818–1883)
- Posluszny, U (Posl.) Usher Posluszny
- Pospichal, EL (Posp.) Eduard Pospichal (1838–1905)
- Posso, SR Sérgio Roberto Posso
- Post, GE (Post) George Edward Post (1838–1909)
- Postels, A (Postels) Alexander Filippovich Postels (1801–1871)
- Posto, AL (Posto) Amanda L. Posto
- Potapov, MB Mikhail B. Potapov
- Potier de la Varde, RA (P.de la Varde) Robert André Léopold Potier de la Varde (1878–1961)
- Potiez, VLV Valéry Louis Victor Potiez (1806–?)
- Potonié, H (Potonié) Henry Potonié (1857–1913)
- Pott, R (R.Pott) Reino Pott (1869–1965)
- Potter, DS (Potter) David S. Potter
- Potts, TH Thomas Henry Potts
- Potůček, O (Potůček) Oldřich Potůček (1929–2009)
- Poujade, GA Gustave Arthur Poujade ( –1909)
- Poulsen, A (A.D.Poulsen) Axel Dalberg Poulsen (1961– )
- Poulsen, C Christian Poulsen
- Poulsen, EM Erik Mellentin Poulsen (1900–1985)
- Poulsen, RS (R.S. Poulsen) Roar Skovlund Poulsen
- Poulsen, VA (Poulsen) Viggo Albert Poulsen (1855–1919)
- Poulter, BA (Poulter) Barbara A. Poulter (fl. 1954)
- Poulton, EB (Poulton) Edward Bagnall Poulton (1856–1943)
- Poumarat, S (Poumarat) Serge Poumarat
- Pound, NR (Pound) Nathan Roscoe Pound (1870–1964)
- Poupin, J Joseph Poupin (1957– )
- Pourret, PA (Pourr.) Pierre André Pourret (1754–1818)
- Pousargues, E Eugène de Pousargues (?–1901)
- Pouzar, Z (Pouzar) Zdeněk Pouzar (1932– )
- Poveda, LJ Luis J. Poveda
- Povolný, DF Dalibor F. Povolný (1924–2004)
- Povž, M Meta Povž
- Powell, AM (A.M.Powell) Albert Michael Powell (1937– )
- Powell, AWB Arthur William Baden Powell (1901–1987)
- Powell, EN Eric Noel Powell
- Powell, JA (J.A. Powell) Jerry Allen Powell
- Powell, JE Jaime Eduardo Powell (1953–2016)
- Powell, M (M.Powell) Martyn Powell (1975– )
- Powell, MJ (M.J.Powell) Martha J. Powell
- Powell, RF (R.F.Powell) Robyn Faye Powell (fl. 2013)
- Powell, T (Powell) Thomas Powell (1809–1887)
- Power, MA Anne Marie Power
- Powrie, E (Powrie) Elizabeth Powrie (1925–1977)
- Poyato-Ariza, FJ Francisco José Poyato-Ariza
- Poynton, JC John C. Poynton
- Pozner, R (Pozner) Raúl Pozner (1963)
- Pozzi, AJ Aurelio Juan Santiago Pozzi (1894–1959)
- Prabhoo, NR N. Ramachandra Prabhoo (1937–1988)
- Prabhu, AV (A.V.Prabhu) A.V. Prabhu
- Prabowo, RE Romanus Edy Prabowo
- Prada, C (Prada) Carmen Prada (1953– )
- Pradeep, AK (Pradeep) Ayilliath K. Pradeep (fl. 1990)
- Praderio, MJ Maria José Praderio
- Pradhan, UC (Pradhan) Udai Chandra Pradhan (1949– )
- Prado, GM Gustavo Machado Prado
- Prado, J (J.Prado) Jefferson Prado (1964– )
- Praeger, RL (Praeger) Robert Lloyd Praeger (1865–1953)
- Prain, D (Prain) David Prain (1857–1944)
- Pramuk, JB Jennifer B. Pramuk
- Pranada, MAK (Pranada) Mc Andrew K. Pranada (fl. 2019)
- Prance, GT (Prance) Ghillean Tolmie Prance (1937– )
- Prantl, KAE Karl Anton Eugen Prantl (1849–1893)
- Praschag, P Peter Praschag
- Prashad, B Baini Prashad (1894–?)
- Prathapan, KD Kaniyarikkal Divakaran Prathapan
- Prather, AL Aysha L. Prather
- Prather, LA L. Alan Prather
- Pratov, UP (U.P.Pratov) Uktam Pratovich Pratov (1934– )
- Pratt, GC Gordon F. Pratt
- Pratt, HD Harold Douglas Pratt (1944– )
- Pratt, RC Renae C. Pratt
- Pratt, TK Thane K. Pratt
- Prauser, H (Prauser) Helmut Prauser (1928—2018)
- Prauser, W (W.Prauser) Wolfgang Prauser (1953—)
- Pravdin, FN (F.N.Pravdin) Fedor Nikolaevich Pravdin (1908–1988)
- Pravdin, IF (I.F.Pravdin) Ivan Fedorovich Pravdin (1880–1963)
- Prawiradilaga, DM Dewi M. Prawiradilaga
- Preble, EA Edward Alexander Preble (1871–1957)
- Preiss, B Balthazar Preiss
- Preiss, L (L.Preiss) Ludwig Preiss (1811–1883)
- Preissecker, F Fritz Preissecker (1873–1946)
- Prell, HB Heinrich Bernward Prell (1888–1962)
- Prendini, L Lorenzo Prendini
- Prentice, HC (H.C.Prent.) Honor Clare Prentice (1952– )
- Prentice, JE John Edward Prentice
- Prentice, MA Michael Andrew Prentice
- Preobraschensky, GA (Preobr.) Grigory A. Preobraschensky (1892–1919)
- Prescott, JD (J.D.Prescott) John D. Prescott ( –1837)
- Presl, J (J.Presl) Jan Svatopluk Presl (1791–1849)
- Presl, K (C.Presl) Karel Bořivoj Presl (1794–1852)
- Presser, H Helmut Presser
- Preston, CM Christina M. Preston
- Preston, I (Preston) Isabella Preston (1881–1965)
- Preuss, CGT (Preuss) Carl Gottlieb Traugott Preuss (1795–1855)
- Preuss, PR (P.Preuss) Paul Rudolph Preuss (1861– )
- Prevost, F Florent Prévost ( –1870)
- Prévost, G Gilles Prévost
- Prévot, AR André Romain Prévot (1894–1982)
- Pribram, EA Ernst August Pribram
- Přibyl, A Alois Přibyl (1914–1988)
- Price, AH Andrew H. Price
- Price, CE Claire E. Price
- Price, DS David S. Price
- Price, DW Douglas William Price
- Price, EW Emmett William Price
- Price, LC Luke C. Price
- Price, LI Llewelyn Ivor Price (1905–1980)
- Price, M Momoko Price
- Price, MG (M.G.Price) Michael Greene Price (1941– )
- Price, RA (R.A.Price) Robert A. Price (fl. 1988)
- Price, RD (R.D.Price) Roger D. Price
- Price, RM Robert M. Price
- Price, TD Trevor D. Price
- Price, WR (W.R.Price) William Robert Price (1886–1975)
- Price-Waldman, R Rosalyn Price-Waldman
- Pricolo, A (Pricolo) Antonio Pricolo (1865–19..)
- Pridgeon, AM (Pridgeon) Alec Melton Pridgeon (1949–)
- Priesner, H Hermann Priesner (1891–1974)
- Prieto, C (Prieto) Carlos Prieto
- Prieto, M (M. Prieto) María Prieto (fl. 2008)
- Prigioni, CM Carlos M. Prigioni
- Prigogine, A Alexandre Prigogine
- Prillieux, EE (Prill.) Édouard Ernest Prillieux (1829–1915)
- Prime, CT (Prime) Cecil Thomas Prime (1909–1979)
- Prina, AO (Prina) Anibal Oscar Prina (1957– )
- Princis, K Karlis Princis (1893–1978)
- Pringle, CG (Pringle) Cyrus Guernsey Pringle (1838–1911)
- Pringle, JS (J.S.Pringle) James Scott Pringle (1937– )
- Prins De, J (J.De Prins) Jurate De Prins
- Prins De, W (W.De Prins) Willy De Prins
- Printz, KHO (Printz) Karl Henrik Oppegaard Printz (1888–1978)
- Printzen, C Christian Printzen
- Priolo, A Angelo Priolo
- Priszter, S (Priszter) Szaniszló Priszter (1917–2011)
- Pritchard, A Andrew Pritchard
- Pritchard, AE Arthur Earl Pritchard (1915–1965)
- Pritchard, NM ('N.M.Pritch.) Noël Marshall Pritchard (1933–2005)
- Pritchard, PCH Peter Charles Howard Pritchard (1943–2020)
- Pritzel, EG (E.Pritz.) Ernst Georg Pritzel (1875–1946)
- Pritzel, GA (Pritz.) Georg August Pritzel (1815–1874)
- Probatova, NS (Prob.) Nina Sergeyevna Probatova (1939–2023)
- Prober, S (Prober) Suzanne Prober (1964– )
- Procházka, F (F.Proch.) František Procházka (1939–2004)
- Próchniewicz, M Maciej Próchniewicz
- Procter, JB Joan Beauchamp Procter (1897–1931)
- Procter, W William Procter (1872–1951)
- Proctor, GR (Proctor) George Richardson Proctor (1920–2015)
- Prodan, I (Prodan) Iuliu Prodan (1875–1959)
- Prodoehl, A (Prodoehl) Alice Prodoehl
- Proença, CEB (Proença) Carolyn Elinore Barnes Proença (1956– )
- Progel, A (Progel) August Progel (1829–1889)
- Prohaska, K Karl Prohaska (1854–1937)
- Prokhanov, JI (Prokh.) Jaroslav Ivanovic Prokhanov (1902–1964)
- Prokop, J Jakub Prokop
- Prokopov, GA (Prokopov) Grigorii A.Prokopov
- Prosch, FVA Ferdinand Victor Alphons Prosch (1820–1885)
- Pröse, H (Pröse) Herbert Pröse
- Proskauer, JM (Prosk.) Johannes Max Proskauer (1923–1970)
- Proskoriakov, EI (Proskor.) Eugeny Ivanovich Proskoriakov (1895–1965)
- Prosser, F (Prosser) Filippo Prosser (1963– )
- Prószyński, J (Prószyński) Jerzy Prószyński
- Proust, L (Proust) Louis Proust (1878–1959)
- Prout, LB (L.B. Prout) Louis Beethoven Prout (1864–1943)
- Provancher, LA Léon Abel Provancher (1820–1892)
- Provonsha, AV Arwin V. Provonsha
- Provenzano, AJ Anthony J. Provenzano, Jr.
- Prozorov, AM (Prozorov) Alexey Mihailovich Prozorov
- Prozorova, LA Larisa Arkadievna Prozorova
- Prudhomme, J (J.Prudhomme) Jean Prudhomme (fl. 1986)
- Prunner, L Leonardo De Prunner ( –1831)
- Prusak, ZA (Prusak) Zachary A.Prusak
- Pruski, JF (Pruski) John F. Pruski (1955– )
- Pruvot, GF Georges Florentin Pruvot (1852–1924)
- Pruvot-Fol, A Alice Pruvot-Fol (1873–1972)
- Pryer, KM (Pryer) Kathleen M. Pryer (fl. 1993)
- Pryer, WB William Burgess Pryer
- Pryor, LD (L.D.Pryor) Lindsay Dixon Pryor (1915–1998)
- Przewalski, NM Nikolai Mikhailovich Przhevalskiy (1839–1888)
- Przybylowicz, L (Przybylowicz) Łukasz Przybyłowicz
- Pu FJ Fu-Ji Pu
- Pucci, A (Pucci) Angiolo Pucci (1851–1935)
- Puccinelli, BL (Puccin.) Benedetto Luigi Puccinelli (1808–1850)
- Pucheran, J Jacques Pucheran (1817–1894)
- Puchet, GHG (C.H.G.Pouchet) Charles-Henri-Georges Pouchet (1833–1894)
- Puchkov, VG Vasily Georgievich Puchkov (1909–1995)
- Puckett, TM T. Markham Puckett
- Puckridge, M Melody Puckridge
- Puff, Christian (Puff) Christian Puff (1949– )
- Pugaev, SN (Pugaev) Sergey Nikolaevich Pugaev
- Pugliese, A Adriana Pugliese
- Pugliese, N Nevio Pugliese
- Pugsley, HW (Puglsey) Herbert William Pugsley (1868–1947)
- Pühringer, F (Pühringer) Franz Pühringer
- Pujadas, A (A.Pujadas) Antonio Pujadas (1950– )
- Pujade-Villar, J (Pujade-Villar) Juli Pujade-Villar
- Pujals, C (Pujals) Carmen Pujals (1916–2003)
- Pukall, R Rüdiger Pukall
- Pulević, V (Pulević) Vukić Pulević (1938– )
- Pulido F, J Juan Pulido F
- Pulitzer-Finali, G Gustavo Pulitzer-Finali
- Pulle, AA (Pulle) August Adriaan Pulle (1878–1955)
- Pulleine, RH Robert Henry Pulleine (1869–1935)
- Pullen, AB (A.B.Pullen) A.B. Pullen (fl. 1987)
- Pullen, TM (Pullen) Thomas Marion Pullen (1919– )
- Pulliat, V (Pulliat) Victor Pulliat (1827–1866)
- Punekar, SA (Punekar) Sachin Anil Punekar (1977– )
- Püngeler, R Rudolf Püngeler (1857–1927)
- Punithalingam, E (Punith.) Eliyathamby Punithalingam (1935– )
- Puntillo, D (Puntillo) Domenico Puntillo (1950– )
- Puplesiene, J (Puplesiene) Jurate Puplesiene
- Puplesis, R Jonas Rimantas Stonis (Rimantas Puplesis)
- Puppo, P Pamela Puppo
- Pupulin, F (Pupulin) Franco Pupulin (1960– )
- Purcell, WF William Frederick Purcell (1866–1919)
- Purchart, L Luboš Purchart
- Purchas, WH William Henry Purchas (1823–1903)
- Purdom, W (Purdom) William Purdom (1880–1921)
- Purdy, CE (Purdy) Carlton Elmer Purdy (1861–1945)
- Puri, HS Harbans Singh Puri
- Purkyně, E (Purk.) Emanuel von Purkyně (1832–1882)
- Purper, I Ivone Purper
- Purpus, CA (Purpus) Carl Albert Purpus (1851–1941)
- Purpus, JA (J.A.Purpus) Joseph Anton Purpus (1860–1932)
- Pursch, FT (Pursh) Frederick Traugott Pursh (1774–1820)
- Pursell, RA (Pursell) Ronald Arling Pursell (1930– )
- Purvis, OW (Purvis) Oliver William Purvis (1959– )
- Pürzl, E Ed Pürzl
- Pusch, GG Georg Gottlieb Pusch (1790–1846)
- Pusch, MHE Martina Hedwig Else Pusch (1961–)
- Pusswald, W (Pusswald) W. Pusswald
- Puthz, V (Puthz) Volker Puthz
- Putnam, FW Frederic Ward Putnam (1839–1915)
- Puton, JBA or Puton, A Auguste Puton (1834–1913)
- Putra, DD Dadang Dwi Putra
- Putra, NS Nugroho Susetya Putra
- Putterlick, A (Putt.) Aloys Putterlick (1810–1845)
- Puttock, CF (Puttock) Christopher Francis Puttock (1954– )
- Pütz, A (Pütz) Andreas Pütz
- Putzeys, JAAH Jules Antoine Adolphe Henri Putzeys
- Pyburn, WF William Frank Pyburn (1927–2007)
- Pyck, N Nancy Pyck
- Pycraft, WP William Plane Pycraft (1868–1942)
- Py-Daniel, V Victor Py-Daniel (1951–2021)
- Pykälä, J (J. Pykälä) Juha Pykälä
- Pyle, RL Richard L. Pyle
- Pyrcz, TW (Pyrcz) Tomasz Wilhelm Pyrcz
