Catalog:Taxon Authorities/T
- Tabacaru, IG Ionel Grigore Tabacaru
- Tabachnick, KR Konstantin Rafailovich Tabachnick (1963–)
- Tabari, M (Tabari) Masoud Tabari (fl. 2012)
- Tabell, J (Tabell) Jukka Tabell
- Taborda de Morais, AA (Tab.Morais) Antonio Artur Taborda de Morais (1900–1959)
- Tabuki, R Ryoichi Tabuki
- Tachi, T Takuji Tachi
- Tachibana, K Kōichi Tachibana
- Tachibana, M Makino Tachibana
- Tachihara, K Katsunori Tachihara
- Täckholm, V (Täckh.) Vivi Täckholm (1898–1978)
- Taczanowski, W Władysław Taczanowski (1819–1890)
- Tadauchi, O (Tadauchi) Osamu Tadauchi
- Tadera, K (K. Tadera) Kiyoshi Tadera
- Tadokoro, T (Tadokoro) Teruo Tadokoro
- Tadulingam, C (Tadul.) Chinnakavanam Tadulingam (1878– )
- Tadych, M Mariusz Tadych
- Tae, KH (K.Tae) Kyoung Hwan Tae
- Tafe, DJ Dennis J. Tafe
- Tagawa, M Motozi Tagawa (1908–1977)
- Tagg, HF (Tagg) Harry Frank Tagg (1874–1933)
- Tagliabue, G (Tagl.) Giuseppe Tagliabue
- Tahir, SS (Tahir) Syeda Saleha Tahir (fl. 1980)
- Taiti, S Stefano Taiti
- Takada, H (H. Takada) Hajimu Takada
- Takagi, S Sadao Takagi (1932–)
- Takahashi, K Kozo Takahashi
- Takahashi, T Tetsumi Takahashi
- Takahashi, Y Yoko Takahashi
- Takáhashi, M (M. Takáhashi) Mayumí Takáhashi
- Takakura, T (Takakura) Tadahiro Takakura
- Takakuwa, M Masatoshi Takakuwa (1947–2016)
- Takakuwa, Y Yoshioki Takakuwa (1873–1960)
- Takamatsu, A (A.Takamatsu) Akira Takamatsu (1921–2010)
- Takamatsu, M (Takamatsu) Masahiko Takamatsu (1899–?)
- Takamatsu, S (S.Takamatsu) Susumu Takamatsu (1953–)
- Takamiya, M (M.Takamiya) Masayuki Takamiya (fl. 1997)
- Takanami, Y Yusuke Takanami
- Takase, R (R.Takase) Roberto Takase
- Taka-Tsukasa, N Nobusuke Taka-Tsukasa (1889–1959)
- Takeda, A (A.Takeda) Akimasa Takeda (19..–)
- Takeda, H Hisayoshi Takeda (1883–1972)
- Takeda, Y (Y.Takeda) Yoshito Takeda (1896–1967)
- Takei, S (Takei) Shin Takei
- Takemura, A Atsushi Takemura
- Takenaka, A (Takenaka) Akihiko Takenaka
- Takenaka, S Sen Takenaka
- Takeuchi, WN Wayne N. Takeuchi
- Takhtajan, AL (Takht.) Armen Leonovich Takhtajan (1910–2009)
- Taki, I Isao Taki (1898–1961)
- Takizawa, H Haruo Takizawa (1944–)
- Takizawa, H (Takiz.) Hiroyuki Takizawa
- Talavera, S (Talavera) Salvador Talavera (1945– )
- Talbot, FH Frank Hamilton Talbot
- Talbot, G George Talbot (1882–1952)
- Talbot, M Mignon Talbot (1869–1950)
- Talbot, PHB (P.H.B.Talbot) Patrick Henry Brabazon Talbot (1919–1979)
- Talebi, AA (Talebi) Ali Asghar Talebi
- Talent, JA John A. Talent
- Tali, K (Tali) Kadri Tali
- Taliev, DN Dmitrii Nikolaevich Taliev (1908–1952)
- Taliev, VI (Taliev) Valerii Ivanovich Taliev (1872–1932)
- Taltasse, MA (Taltasse) M.A. Taltasse
- Talwar, PK Purnesh Kumar Talwar
- Tamai, D (Tamai) Daisuke Tamai
- Tamamschjan, SG (Tamamsch.) Sophia Georgievna Tamamschjan (1900–1981)
- Tamang, L Lakpa Tamang
- Tamanuki, K Koichi Tamanuki
- Tamaris-Turizo, C (Tamaris-Turizo) César Tamaris-Turizo
- Tambareau, Y Yvette Tambareau
- Tambussi, CP Claudia Patricia Tambussi
- Tams, WHT Willie Horace Thomas Tams (1891–1980)
- Tamura, T Tomohiko Tamura
- Tan, BC (B.C.Tan) Benito C. Tan (1947– )
- Tan, J Jingjing Tan (1979– )
- Tan, JB (J.B.Tan) Jin Bo Tan (fl. 2014)
- Tan, JJ Juan-Jie Tan (1917–2007)
- Tan, JL (J.L.Tan) Jiang-Li Tan
- Tan, K (Kit Tan) Kit Tan (1953– )
- Tan, M Milton Tan
- Tan, SE Swee-Hee Tan
- Tanaka, G Gengo Tanaka
- Tanaka, H Hayato Tanaka
- Tanaka, H Hirotaka Tanaka
- Tanaka, H Hozumi Tanaka
- Tanaka, N (N.Tanaka) Noriyuki Tanaka (fl. 1998)
- Tanaka, S Shigeho Tanaka (1878–1974)
- Tanaka, T (T. Tanaka) Toshiharu Tanaka
- Tanaka, T (Tanaka) Tyôzaburô Tanaka (1885–1976)
- Tanaka, Y (Yu.Tanaka) Yuichiro Tanaka (1900– )
- Tanasevitch, AV Andrei V. Tanasevitch (1956– )
- Tandang, DN (Tandang) Danilo N. Tandang (fl. 2005)
- Tandy, M Mills Tandy
- Tanfani, E Enrico Tanfani (1848–1892)
- Tang, BP (B.P. Tang) Bo-Ping Tang
- Tang, BW Bo-wei Tang
- Tang, CZ (C.Z.Tang) Chen Zi Tang
- Tang, G Guo Tang
- Tang, GM Gui-ming Tang
- Tang, L (L.Tang) Liang Tang
- Tang, Q Qian Tang
- Tang, T Tsin Tang (1897–1984)
- Tang, YQ Yinquiu Tang
- Tange, C (Tange) Christian Tange
- Tangerini, N (Tangerini) Nirton Tangerini
- Tanikawa, A Akio Tanikawa
- Tanke, D Darren Tanke
- Tanner, VM Vasco Myron Tanner (1892–1989)
- Tanner, W Wilmer Webster Tanner (1909– )
- Tano, T Tatsuo Tano
- Tansley, AG Arthur George Tansley (1871–1955)
- Tänzler, R Rene Tänzler
- Tao, CC Chia-Chu Tao (1911–1999)
- Tao, GD (G.D.Tao) Guo Da Tao (1939– )
- Tao, TS Tian-Shen Tao
- Taphorn, DC Donald C. Taphorn
- Tapparone Canefri, CM Cesare Maria Tapparone Canefri (1838–1891)
- Taquet, P Philippe Taquet (1940– )
- Taránek, KJ (Taránek) Karel Jan Taránek (1855–1888)
- Taranetz, AYa (Taranetz) Anatoly Yakovlevich Taranetz (1910–1941)
- Taranto, E (Taranto) Emmanuele Taranto (fl. 1845)
- Tarasov, NI (N.I.Tarasov] Nikolai Ivanovich Tarasov (1905–1965)
- Tarassov, AO (A.O.Tarassov] Alexander Osipovich Tarassov (1914–1998)
- Tarassov, KL (K.L.Tarassov] Konstantin Lvovich Tarassov (1947-)
- Tarassov, RP (Tarassov] Rostislav Petrovich Tarassov (1917-)
- Tarbinsky, SP Sergey Petrovich Tarbinsky (1902–1942)
- Tarbinsky, YS Yurij Serafimovich Tarbinsky (1937–2003)
- Tardieu, ML (Tardieu) Marie Laure Tardieu (1902– )
- Targé, AJJ (Targé) André Jules Jean Targé
- Targioni Tozzetti, A Adolfo Targioni Tozzetti (1823–1902)
- Targioni Tozzetti, G Giovanni Targioni Tozzetti (1712–1783)
- Targioni Tozzetti, O (O.Targ.Tozz.) Ottaviano Targioni Tozzetti (1755–1829)
- Tarmann, GM (Tarmann) Gerhard Michael Tarmann
- Tarnawski, D (Tarnawski) Dariusz Tarnawski (1953–2021)
- Taroda Ranga, N Neusa Taroda Ranga
- Tarp, FH Fred Harald Tarp
- Tarragon, LM Léonce Marquis de Tarragon (1813–1896)
- Tárrega, S (S.Tárrega) Silvia Tárrega Bellver (1955– )
- Tarrier, MR Michel R. Tarrier
- Taschenberg, EL Ernst Ludwig Taschenberg (1818–1898)
- Taschenberg, EO Ernst Otto Taschenberg (1854–1922)
- Tasnim, R Rashida Tasnim
- Tassi, F (Tassi) Flaminio Tassi (1851– )
- Tatarinow, AA (Tat.) Alexander Alexejevitch Tatarinow Tat.
- Tatarnic, N Nikolai Tatarnic
- Tate, DE (D.E.Tate) Donald Eugene Tate (1933–1996)
- Tate, GHH George Henry Hamilton Tate (1894–1953)
- Tateishi, Y Yoichi Tateishi (1948– )
- Tateoka, T (Tateoka) Tsuguo Tateoka (1931– )
- Tatewaki, M (Tatew.) Misao Tatewaki (1899– )
- Tattersall, I Ian Tattersall
- Tattersall, OS Olive S. Tattersall
- Tattersall, WM Walter Medley Tattersall (1882–1943)
- Taubenheim, G Gerd Taubenheim
- Tauber, CA (C.A.Tauber) Catherine A. Tauber
- Taubert, PHW Paul Hermann Wilhelm Taubert (1862–1897)
- Taucare-Ríos, A Andrés Taucare-Ríos
- Taufik, A Agustinus Taufik
- Tausch, IF (Tausch) Ignaz Friedrich Tausch (1793–1848)
- Tauscher, AM August Michael Tauscher (1771 - 1841)
- Tauss, C (Tauss) Catherine Tauss (fl. 2011)
- Tautel, C (Tautel) Claude Tautel
- Tavares, C (Tav.) Carlos das Neves Tavares (1914–1972)
- Tavares, ES Erika Sendra Tavares
- Tavares, II (I.I.Tav) Isabelle Irene Tavares (1921–2011)
- Tavares, JS (J.Tav.) Joaquim da Silva Tavares (1866–1931)
- Tavares, M Marcos Tavares
- Tavares, MT Marcelo Teixeira Tavares
- Tavera, J Jose Tavera
- Taverne, L Louis Taverne
- Távora, VA Vladimir de Araújo Távora
- Tawan, CS Cheksum Supiah Tawan (1959– )
- Tawil, P Patrick Tawil
- Taylor, B Brian Taylor
- Taylor, CA Christopher A. Taylor
- Taylor, CK Christopher K. Taylor
- Taylor, CM (C.M.Taylor) Charlotte M. Taylor (1955– )
- Taylor, DW (D.W.Taylor) Dean W. Taylor
- Taylor, EH Edward Harrison Taylor (1889–1978)
- Taylor, FH Frank Henry Taylor (1886–1945)
- Taylor, FJR (F.J.R.Taylor) Frank John Rupert Taylor (1939–)
- Taylor, G (G.Taylor) George Taylor (1904–1993)
- Taylor, G (Gary Taylor) Gary Taylor
- Taylor, GS Gary S. Taylor
- Taylor, H (H.Taylor) Herbert Taylor
- Taylor, JM (J.M.Taylor) Joan M. Taylor (1929– )
- Taylor, JM Jocelyn Mary Taylor (1931–2019)
- Taylor, KL Kenneth L. Taylor
- Taylor, MRFJ (M.Taylor) Mary Ruth Fussel Jackson Taylor (1908– )
- Taylor, MS Michael S. Taylor
- Taylor, N (N.Taylor) Norman Taylor (1883–1967)
- Taylor, NP (N.P.Taylor) Nigel Paul Taylor (1956– )
- Taylor, P (P.Taylor) Peter Geoffrey Taylor (1926– )
- Taylor, PJ Peter John Taylor (1963–)
- Taylor, R (R.Taylor) Richard Taylor (1781–1858)
- Taylor, R Richard Taylor (entomologist) (1805–1873)
- Taylor, RJ (R.J.Taylor) Ronald J. Taylor (1932– )
- Taylor, RL (Roy L.Taylor) Roy Lewis Taylor (1932– )
- Taylor, RW Robert W. Taylor
- Taylor, T (Taylor) Thomas Taylor (1775–1848)
- Taylor, TN (T.N.Taylor) Thomas Norwood Taylor (fl. 1969)
- Taylor, WC (W.C.Taylor) W.Carl Taylor (1946– )
- Taylor, WR William R. Taylor ichtyologist
- Taylor, WR William Randolph Taylor (1895–1990), phycologist & botanist
- Tchabanenko, SI (Tchaban.) Svetlana Ivanovna Tchabanenko (1954–2018)
- Tchechmedjieva, V Violeta Tchechmedjieva (1948– )
- Tchesunov, AV Alexei Valerievich Tchesunov (1951– )
- Tchichatscheff, PA (Tchich.) Petr Aleksandrovich Tchichatscheff (1812–1890)
- Tedeschi, M Mishele Tedeschi
- Tedlie, H (Tedlie) Henry Tedlie (1792–1818)
- Teeter, JW James W. Teeter
- Tee-Van, J John Tee-Van (1897–1967)
- Tehler, A (Tehler) Anders Gunnar Tehler (1947– )
- Teichert, C Curt Teichert (1905–1996)
- Teijsmann, JE (Tiejsm.) Johannes Elias Teijsmann (1808–1882)
- Teixeira, AR Alcides Ribeiro Teixeira (1918– )
- Teixeira, DM Dante Martins Teixeira
- Teixeira, J José Teixeira
- Teixiera, JSG Juliana Stephanie Galaschi Teixeira
- Tejavej, A Anuratana Tejavej
- Tejero-Díez, JD (Tejero) J. Daniel Tejero-Díez fl. 2004
- Tekşen, M (Tekşen) Mehtap Tekşen
- Telford, IRH ('I.Telford) Ian R.H. Telford (1941– )
- Tellería, MC (M.C.Tellería) María Cristina Tellería (1950– )
- Téllez, O (O.Téllez) Oswaldo Téllez Valdés (1953– )
- Telnov, D Dmitry Telnov
- Temminck, CJ Coenraad Jacob Temminck (1778–1858)
- Tempère, JA Joannes Albert Tempère
- Templeton, R Robert Templeton (1802–1892)
- Tena-Flores, JA (Tena) Jorge A. Tena-Flores fl. 2005
- Tendeiro, J João Tendeiro
- Teng, HT Huo-Tu Teng (1911–1978)
- Tengström, JMJ Johan Martin Jakob von Tengström (1821–1890), entomologist.
- Tenison-Woods, JE Julian Edmund Tenison-Woods (1832–1889)
- Tennent, WJ W. John Tennent
- Tennyson, AJD Alan J.D. Tennyson
- Tenore, M (Ten.) Michele Tenore (1780–1861)
- Tenorio, JA Joaquin Agulto Tenorio (1939–)
- Tenorio, JM JoAnn Marie Tenorio (1943–2019)
- Tenorio, MJ Manuel Jimenez Tenorio
- Teobaldelli, A (Teobaldelli) Adriano Teobaldelli
- Teodorczyk, W Włodzimierz Teodorczyk
- Tepedelen, K Kamuran Tepedelen
- Tepper, JGO Johann Gottlieb Otto Tepper (1841–1922)
- Terada, T (Terada) Takeshi Terada
- Terán, M (Terán) Manuel de Mier y Terán (-1852)
- Teranishi, N Noboru (Cho) Teranishi (1896–1938)
- Terayama, M Mamoru Terayama
- Terborgh, JW John Whittle Terborgh (1936– )
- Ter-Chatschaturova, SY (Ter-Chatsch.) Susanna Yakovlevna Ter-Chatschaturova (1902– )
- Terentjev, PV Pavel Victorovich Terentjev (1903–1970)
- Terentyeva, IA (Terentyeva) Irina Aleksandrovna Terentyeva (19..–)
- Termier, G Geneviève Termier (1917–2005)
- Termier, H Henri Termier (1897–1989)
- Ter-Minassian, ME Margarita Ervandovna Ter-Minassian (1910–1995)
- Ternovsky, MF (Tern.) Mikhail Fedorovich Ternovsky (1883–1986)
- Terpó, A (Terpó) András Terpó (1925–2015)
- Terquem, O Olry Terquem
- Terracciano, A (A.Terracc.) Achille Terracciano (1861–1917)
- Terracciano, N (N.Terracc.) Nicola Terracciano (1837–1921)
- Terrazas, T (Terrazas) Teresa Terrazas (1962– )
- Terrell, EE (Terrell) Edward E. Terrell (1923– )
- Terrill, RS Ryan S. Terrill
- Terrón-Alfonso, A (Terrón) Arsenio Terrón-Alfonso
- Teruel, R Rolando Teruel
- Terzioğlu, S Salih Terzioğlu
- Tesakova, EM Ekaterina Mikhaylovna Tesakova
- Teschemacher, JE James Englebert Teschemacher (1790–1853)
- Teschner, WP (W.P.Teschner) Walter Paul Teschner
- Teslenko, VA (Teslenko) Valentina A. Teslenko
- Teson, A A. Teson
- Tessmann, GT Günter Theodor Tessmann (1884–1969)
- Testa, RT Raymond T. Testa
- Testo, WL (Testo) Weston L. Testo (fl. 2015)
- Tetè, P Pierantonio Tetè
- Teterina, II Irina Ivanovna Teterina
- Teugels, GG Guy G. Teugels
- Teynié, A Alexandre Teynié
- Tezcan, F (Tezcan) Fatma Tezcan (fl. 2012)
- Thaithong, O (Thaithong) Obchant Thaithong
- Thaler, K Konrad Thaler (1940–2005)
- Thammathaworn, A (Thammath.) Achra Thammathaworn
- Thanh, VN Vu Ngoc Thanh
- Thanigairaj, R Ramalingam Thanigairaj
- Tharp, BC Benjamin Carroll Tharp (1885–1964)
- Thatcher, VE Vernon Everett Thatcher (1929–2011)
- Thavipoke, P (Thavipoke) Patana Thavipoke (fl. 2014)
- Thaxter, R (Thaxt.) Roland Thaxter (1858–1932)
- Thayer, JE John Eliot Thayer (1862–1933)
- Thayer, MK Margaret K. Thayer
- Thays, C (Thays) Carlos Thays (1849–1934)
- Thedenius, KF (Thed.) Knut Fredrik Thedenius (1814–1894)
- Théel, JH Johan Hjalmar Théel (1848–1937)
- Theilade, I Ida Theilade
- Theischinger, G Günther Theischinger (1940– )
- Theissen, F (Theiss.) Ferdinand Theissen (1877–1919)
- Thell, A Arne Thell (1966– )
- Thellung, A (Thell.) Albert Thellung (1881–1928)
- Themudo, GE G. Espregueira Themudo
- Theobald, FV (Theobald) Frederick Vincent Theobald (1868–1930)
- Theobald, W (W.Theob.) William Theobald (1829–1908)
- Theobald, WL (W.L.Theob.) William Louis Theobald (1936– )
- Théobald, N Nicolas Théobald (1903–1981)
- Theodorova, TA (Theodorova) Tatiana Anatolievna Theodorova
- Thériot, I (Thér.) Irénée Thériot (1859–1947)
- Theron, PD Pieter D. Theron
- Théry, A André Théry (1864–1947)
- Thévenau, AV Antonin Victor Thévenau (1815–1876)
- Thiaucourt, P (Thiaucourt) Paul Thiaucourt
- Thiebaud, CH Charles Henri Thiebaud
- Thiébaut, J (J.Thiébaut) Joseph Thiébaut
- Thiel, H Hjalmar Thiel (1932– )
- Thiel, ME Max Egon Thiel (1898–1979)
- Thiele, G (G.Thiele) Günter Thiele
- Thiele, J Johannes Thiele (1860–1935)
- Thiele, KR (K.R.Thiele) Kevin Thiele (1959– )
- Thiele, W (W.Thiele) Wolfgang Thiele
- Thielens, A (Thielens) Armand Thielens (1833–1874)
- Thieme, O Otto Thieme
- Thien, LB (Thien) Leonard B. Thien (1938– )
- Thienemann, AF August Friedrich Thienemann (1882–1960)
- Thieret, JW (Thieret) John William Thieret (1926–2005)
- Thies, D Detlev Thies
- Thiesmeier, B Burkhard Thiesmeier
- Thieuloy, J-P Jean-Pierre Thieuloy
- Thin, NN (Thin) Nguyen Nghia Thin (1944– )
- Thin, T Thin Thin
- Thiolliere, VJ Victor Joseph de l'Isle Thiolliere
- Thirakhupt, K Kumthorn Thirakhupt
- Thireau, M Michel Thireau
- Thirumalachar, MJ (Thirum.) Mandayam Jeersannidhi Thirumalachar (1914–1999)
- Thiselton-Dyer, WT (Dyer) William Turner Thiselton-Dyer (1843–1928)
- Thistle, DE David Everett Thistle
- Thomas, CA (C.A.Thomas) Charles Arden Thomas (1938–1973)
- Thomas, EA (E.A.Thomas) Eugen Adolf Thomas (1912–1986)
- Thomas, HH (H.H.Thomas) Hugh Hamshaw Thomas (1885–1962)
- Thomas, HP (H.P.Thomas) Hans-Peter Thomas
- Thomas, JD James D. Thomas
- Thomas, JH (J.H.Thomas) John Hunter Thomas
- Thomas, MC Michael Charles Thomas (1948–2019)
- Thomas, MRO Michael Rogers Oldfield Thomas (1858–1929)
- Thomas, RA Robert Allen Thomas
- Thomas, S (S.Thomas) Sarah Thomas (1968– )
- Thomas, WW (W.W.Thomas) William Wayt Thomas (1951– )
- Thomé, OW (Thomé) Otto Wilhelm Thomé (1840–1925)
- Thomerson, JE Jamie E. Thomerson
- Thominot, A Alexandre Thominot
- Thompson, BA Bruce Alan Thompson (1946–2007)
- Thompson, BJ Betty J. Thompson (1943–)
- Thompson, EF Ernest Freeman Thompson
- Thompson, FC Frederic Christian Thompson (1944–2021)
- Thompson, HJ (H.J.Thomps.) Henry Joseph Thompson (1921– )
- Thompson, HN (H.N.Thomps.) Henry Nilus Thompson (1867–1938)
- Thompson, I Ida Thompson
- Thompson, IR (I.Thomps.) Ian R. Thompson
- Thompson, J (J.Thomps.) John Thompson
- Thompson, JC Joseph Cheesman Thompson (1874–1943)
- Thompson, JD (J.D.Thomps.) John D. Thompson (1959– )
- Thompson, Joy (Joy Thomps.) Joy Thompson (1923– )
- Thompson, JV (J.V.Thomps.) John Vaughan Thompson (1779–1847)
- Thompson, L Luther Thompson
- Thompson, MC Max C. Thompson
- Thompson, RT Richard Thomas Thompson (1933– )
- Thompson, TE Thomas Everett Thompson (1933–1990)
- Thompson, W William Thompson (1805–1852)
- Thompson, WF William Francis Thompson (1888–1965)
- Thompson, WW William Wardlaw Thompson
- Thompson, Z Zadock Thompson (1796–1856)
- Thoms, HFM (Thoms) Hermann Friedrich Maria Thoms (1859–1931)
- Thomson, AW Alfred W. Thomson
- Thomson, CG Carl Gustaf Thomson (1824–1899)
- Thomson, GM (G.M.Thomson) George Malcolm Thomson (1848–1933)
- Thomson, J James Thomson (1828–1897)
- Thomson, JA (J.A.Thomson) John A. Thomson
- Thomson, JS (J.S.Thomson) John Scott Thomson (1882–1943)
- Thomson, JW (J.W.Thomson)John Walter Thomson (1913– )
- Thomson, LAJ (L.A.J.Thomson) Lex Allan James Thomson (1957– )
- Thomson, RC Robert C. Thomson
- Thomson, S Scott Thomson (1966– )
- Thomson, T Thomas Thomson (1817–1878)
- Thomson, TRH Thomas Richard Heywood Thomson (1813–1876)
- Thon, K Karel Thon (1879–1906)
- Thon, T Theodor Thon (1792–1838)
- Thonglongya, K Kitti Thonglongya (1928–1974)
- Thonning, P (Thonn.) Peter Thonning (1775–1848)
- Thöny, H (Thöny) Hubert Thöny
- Thor, G (G.Thor) Göran Thor (1953– )
- Thore, J (Thore) Jean Thore (1762–1823)
- Thorel, C (Thorel) Clovis Thorel (1833–1911)
- Thorell, TTT (Thorell) Tord Tamerlan Teodor Thorell (1830–1901)
- Thorn, R Robert Thorn
- Thorn, RG (Thorn) R. Greg Thorn
- Thorne, RF (Thorne) Robert Folger Thorne (1920– )
- Thornton, IWB Ian W.B. Thornton (1926–2002)
- Thory, CA Claude Antoine Thory (1759–1827)
- Thouars, LMA (Thouars) Louis Marie Aubert Du Petit-Thouars (1758–1831)
- Thouin, A (Thouin) André Thouin (1747–1824)
- Thuillier, J (Thuill.) Jean-Louis Thuillier (1757–1822)
- Thulin, G Gustav Thulin (1889– )
- Thulin, M (Thulin) Mats Thulin (1948– )
- Thümen, FKAEJ von (Thüm.) Felix Karl Albert Ernst Joachim von Thümen (1839–1892)
- Thunberg, CP (Thunb.) Carl Peter Thunberg (1743–1828)
- Thurau, F Friedrich Thurau (1843–1913)
- Thurber, G (Thurb.) George Thurber (1821–1890)
- Thurman, DC Deed C. Thurman
- Thurman, EHB Ernestine Hogan Basham Thurman (1920–1987)
- Thurow, GR Gordon R. Thurow
- Thüs, H (Thüs) Holger Thüs
- Thwaites, GHK George Henry Kendrick Thwaites (1811–1882)
- Thys van den Audenaerde, DFE Dirk Thys van den Audenaerde
- Tian, DK (D.K.Tian) Dai Ke Tian
- Tian, MQ Mu-Qu Tian
- Tian, MY (M.Y. Tian) Ming-Yi Tian
- Tian, Q (Q. Tian) Qiong Tian
- Tian, WS Wan-shu Tian
- Tian, YZ Ying-Zhou Tian
- Tibell, L (Tibell) Leif Tibell
- Tibell, S (S. Tibell) Sanja Tibell
- Tibert, NE Neil Ernest Tibert (1966–2015)
- Ticehurst, CB Claud Buchanan Ticehurst (1881–1941)
- Tich, NT Nguyen Thien Tich
- Tickell, SR Samuel Richard Tickell (1811–1875)
- Tidestrøm, I (Tidestr.) Ivar Tidestrøm (1864–1956)
- Tiedemann, F Franz Tiedemann
- Tiedemann, F Friedrich Tiedemann
- Tiedje, JM James M. Tiedje
- Tieghem, PEL (Tiegh.) Phillippe Édouard Léon van Tieghem (1839–1914)
- Tieleman, BI B. Irene Tieleman
- Tighe, KA Kenneth A. Tighe
- Tihen, JA Joseph Anton Tihen
- Tikader, BK Benoy Krishna Tikader (1928–1994)
- Tikhomirov, BA (B.A.Tikhom.) Boris Anatolievich Tikhomirov (1909–1976)
- Tikhomirov, VA (V.A.Tikhom.) Vladimir Andreevich Tikhomirov (1841–1915)
- Tikhomirov, VN (V.N.Tikhom.) Vadim Nikolaevich Tikhomirov (1932–1998)
- Tikhomirov, VN (Val.N.Tikhom.) Valery Nikolaevich Tikhomirov (1974–)
- Tikhonenkov, DV (Tikhonenkov) Denis Viktorovich Tikhonenkov (1982–)
- Tikhonov, VV (Tikhonov) Valentin V. Tikhonov
- Tilbury, CR Colin R. Tilbury
- Tilesius, WG (Tilesius) Wilhelm Gottlieb von Tilesius von Tilenau (1769–1857)
- Tiling, HST (Tiling) Heinrich Sylvester Theodor Tiling (1818–1871)
- Till, WM Winifred Mary Till
- Tillack, F Frank Tillack
- Tillandz, Elias Erici (Tillandz) Elias Tillandz ((1640-1693))
- Tillet, SS (Tillet) Stephen Szlatenyi Tillet (1930– )
- Tilley, SG Stephen G. Tilley
- Tillier, A Annie Tillier
- Tilloch, A (Tilloch) Alexander Tilloch (1759–1825)
- Tillyard, RJ Robin John Tillyard (1881–1937)
- Tilney, PM (Tilney) Patricia M. Tilney (fl. 1987)
- Timbal-Lagrave, PMÉ (Timb.-Lagr.) Pierre Marguérite Édouard Timbal-Lagrave (1819–1888)
- Timberlake, PH P.H. Timberlake
- Timberlake, S Simon Timberlake
- Timdal, E Einar Timdal (1957– )
- Timkó, G (Timkó) György Timkó (1876–1945)
- Timler, FK (Timler) Friedrich Karl Timler (1914– )
- Timm, JC (Timm) Joachim Christian Timm (1734–1805)
- Timm, RM Robert M. Timm
- Timmermann, G Günter Timmermann
- Timmins, RJ Robert J. Timmins
- Tinant, FA (Tinant) François Auguste Tinant (1803–1853)
- Tinaut, A Jose Alberto Tinaut
- Tindale, MD Mary Douglas Tindale (1920– )
- Tindale, NB (N.B.Tindale) Norman B. Tindale
- Tineo, V (Tineo) Vincenzo Tineo (1791–1856)
- Ting, HP Han-po Ting
- Ting, KC Kwang Chi Ting
- Tinker, M Michael Tinker
- Tinkle, DW Donald Ward Tinkle (1930–1980)
- Tinn, O Oive Tinn
- Tinsley, RC Richard C. Tinsley
- Tippery, NP Nicholas P. Tippery
- Tipping, C Christopher Tipping
- Tippmann, FF Friedrich F. Tippmann (1894–1974)
- Tipton, BK Bob L. Tipton
- Tipton, VJ Vernon John Tipton (1920–2001)
- Tirant, G Gilbert Tirant (1848–1899)
- Tirvengadum, DD (Tirveng.) Deva D. Tirvengadum
- Tischer, A Arthur Tischer
- Tishechkin, AK Alexey Konstantinovich Tishechkin (1961–)
- Tison, JM (J.-M.Tison) Jean-Marc Tison (1960– )
- Tisserant, C (Tisser.) Charles Tisserant (1886–1962)
- Title, PO Pascal O. Title
- Titov, AN (Titov) Alexander Nikolaevich Titov (1959–2008)
- Titov, SV (S.V. Titov) Sergey V. Titov
- Titterton, R Rosemary Titterton
- Titus, SJ Stephen J. Titus
- Tiu, D (D.Tiu) Danny Tiu (1940– )
- Tiunov, MP Mikhail P. Tiunov
- Tixier, P (Tixier) Pierre Tixier (1918–1997 )
- Tjaden, WL William Louis Tjaden (1913– )
- Tjaturadi, B Burhan Tjaturadi
- Tjeder, B Bo Tjeder (-1992)
- Tkacheva, ID Irina Donatovna Tkacheva
- Tkachuk, L L.P. Tkachuk
- Tkalcu, B Borek Tkalcu
- Toal, KR Kevin R. Toal
- Tober, K (Tober) Kerstin Tober
- Tobias, J Joseph Tobias
- Tobias, ML Martha L. Tobias
- Tobin, PC Patrick C. Tobin
- Tobler, F (Tobler) Friedrich Tobler (1879–1957)
- Tobolewski, Z (Tobol.) Zygmunt Tobolewski (1927–1988)
- Tocl, K Karel C. Tocl (1870–1910)
- Toda, MJ Masanori Joseph Toda (1948– )
- Todaro, A (Tod.) Agostino Todaro (1818–1892)
- Todaro, MA M. Antonio Todaro
- Todd, EL (E.L.Todd) Edward L. Todd (1922–1986)
- Todd, JL (J.L.Todd) John Lancelot Todd (1876–1949)
- Todd, R (R.Todd) Ruth Todd (1913–1984)
- Todd, RB Robert Bentley Todd (1809–1860)
- Todd, WEC Walter Edmond Clyde Todd (1874–1969)
- Todd-Davies, VE Valerie Ethel Todd-Davies (1920–2012)
- Tode, HJ Heinrich Julius Tode (1733–1797)
- Todsen, K (Todsen) Thomas K. Todsen (1918– )
- Todsen, TA (T.A.Todsen) Thomas A. Todsen
- Todzia, CA (Todzia) Carol Ann Todzia (1955–)
- Toelken, HR Helmut Richard Toelken (1939– )
- Toft, CA Catherine Ann Toft (1950– )
- Toftner, EC Elizabeth C. Toftner
- Tohmé, G Georges Tohmé
- Tohmé, H Henriette Tohmé
- Tojo, K Koji Tojo
- Anatoly A. Tokar
- Tokaryk, TT Tim T. Tokaryk
- Tokioka, T Takasi Tokioka (1913–2001)
- Tokiwa, Y Yukata Tokiwa
- Tokuda, M (Tokuda) Makoto Tokuda
- Tolan, E Ellen Tolan
- Toledano, L Luca Toledano
- Toledo, JF (Toledo) Joaquim Franco de Toledo (1905–1952)
- Toledo, JM (J.M.Toledo) José M. Toledo fl. 2005
- Toledo, M Mario Toledo
- Toledo-Piza, M Mônica Toledo-Piza
- Tolkanitz, VI Valentina I. Tolkanitz
- Toll, S Sergiusz Toll (1893–1961), entomologist.
- Tolley, KA Krystal A. Tolley
- Tolmatchew, AI (Tolm.) Alexandr Innokentevich Tolmatchew (1903–1979)
- Tolsma, J (Tolsma) Jan Tolsma
- Toman, J (J.Toman) Jan Toman (1933–1996)
- Tomaselli, M ( M.Tomas.) Marcello Tomaselli
- Tomaselli, R (Tomas.) Ruggero Tomaselli (1920–1982)
- Tomasiewicz, B Beata Tomasiewicz
- Tomaszewska, W Wioletta Tomaszewska
- Tomaszewski, D (D.Tomasz.) Dominik Tomaszewski (fl. 2006)
- Tomb, AS (Tomb) Andrew Spencer Tomb (1943– )
- Tomes, RF Robert Fisher Tomes (1823–1904)
- Tomin, MP (Tomin) Mikhail Piatrovich Tomin (1883–1967)
- Tomlin, JRLB John Read le Brockton Tomlin (1864–1954)
- Tomlinson, PB (Toml.) Philip Barry Tomlinson (1932– )
- Tomoda, H Hiroshi Tomoda
- Tomokuni, M (Tomokuni) Masaaki Tomokuni
- Tömösváry, O Ödön Tömösváry (1852–1884)
- Tomov, V Vassil Tomov
- Tonduz, A (Tonduz) Adolphe Tonduz (1862–1921)
- Toney, SR Sean R. Toney
- Tong, SM (S.M.Tong) Susan M. Tong (19..– )
- Tong, SQ (S.Q.Tong) Shao-Quan Tong (1935– )
- Tong, YF (Y.F. Tong) Yan-Feng Tong
- Tonglet, AFMA (Tonglet) August (François Marie Antoine) Tonglet (1864-1936)
- Tonnoir, AL André Léon Tonnoir (1885–1940)
- Tonolo, A. Tonolo (fl. 1967)
- Tønsberg, T Tor Tønsberg (1948– )
- Topçu, A (Topçu) Aydin Topçu
- Topsent, E Émile Topsent (1862–1951)
- Torelli, G (Torelli') Gianantonia Torelli
- Toren, DR (D.R.Toren) David R. Toren
- Torke, BM Benjamin M. Torke
- Tornabene, F (Tornab.) Francesco Tornabene (1813–1897)
- Tornier, G Gustav Tornier (1859–1938)
- Toro, RA Rafael Andres Toro (1897– )
- Toro, S (S.Toro) Silvia Toro
- Torre, AR (Torre) Antonio Rocha da Torre (1904– )
- Torrend, C (Torrend) Camillo Torrend (1847–1961)
- Torrente, P (Torrente) Pilar Torrente
- Torres, AM (A.M.Torres) Andrew M. Torres (fl. 1972)
- Torres, E Elizabeth Torres
- Torres, MA (Torres) Maria Amelia Torres (1931– )
- Torres-Mura, JC Juan Carlos Torres-Mura
- Torrey, HB Harry Beal Torrey (1873–1970)
- Torrey, J (Torr.) John Torrey (1796–1873)
- Torssell, G (Torss.) Gustav Torssell (1811–1849)
- Tortosa, RD (Tortosa) Roberto D. Tortosa (1946– )
- Toševski, I (Toševski) Ivo Toševski
- Tosunoğlu, A (Tosunoğlu) Aycan Tosunoğlu (fl. 2012)
- Toumanoff, C (Toumanoff) Constantin Toumanoff (1903–1967)
- Touré, TA T’Shaka A. Touré
- Tourlet, EH (Tourlet) Ernest Henry Tourlet (1843–1907)
- Tourn, GM (G.M.Tourn) Graciela M. Tourn (1950– )
- Tournay, RLJA Roland Louis Jules Alfred Tournay (1925–1972)
- Tournefort, JP (Tourn.) Joseph Pitton de Tournefort (1656–1708)
- Tourrette, MALC Marc Antoine Louis Claret de La Tourrette
- Toussaint, A (Touss.) Anatole Toussaint (1863–1943)
- Touw, A (Touw) Andries Touw (1935– )
- Towers, AA (Towers) Abner A. Towers
- Townes, HK Henry Keith Townes, Jr. (1913–1990)
- Townes, M Marjorie Chapman Townes (1909–2006)
- Townsend, CC (C.C.Towns.) Clifford Charles Townsend (1926– )
- Townsend, CH Charles Haskins Townsend (1859–1944)
- Townsend, CHT Charles Henry Tyler Townsend (1863–1944)
- Townsend, CO Charles Orrin Townsend (1863– )
- Townsend, F (F.Towns.) Frederick Townsend (1822–1905)
- Townsend, JH (J.H. Townsend) Josiah H. Townsend
- Townsend, JI James Ian Townsend
- Townsend, JK John Kirk Townsend (1809–1851)
- Toxopeus, LJ Lambertus Johannes Toxopeus (1894–1951)
- Toyama, M Masanao Toyama
- Toyama, R Reizo Toyama (1913–1947)
- Tôyama, M Masao Tôyama
- Tozoni, SHS Sílvia Helena Sanchez Tozoni (1963–2000)
- Traaen, AE (Traaen) Alf Egeberg Traaen (1885–1981)
- Traba, J Juan Traba
- Trabelsi, K Khaled Trabelsi
- Trabut, LC (Trab.) Louis Charles Trabut (1853–1929)
- Tracanna, BC (Tracanna) Beatriz C. Tracanna (1949– )
- Trail, JWH (Trail) James William Helenus Trail (1851–1919)
- Traill, CP (C.Traill) Catharine Parr Traill (1802–1899)
- Traill, J (J.Traill) James Traill ( -1853)
- Traill, TS Thomas Stewart Traill (1781–1862)
- Trainor, CR Colin R. Trainor
- Transhel, WA Woldemar Andrejevitch Transhel
- Trape, J-F Jean-Francois Trape
- Trapido, H Harold Trapido
- Trappe, James M. (Trappe) James M. Trappe (1931– )
- Trass, H Hans-Voldemar Trass (1928–2017)
- Trattnnick, L (Tratt.) Leopold Trattinnick (1764–1849)
- Traub, HP (Traup) Hamilton Paul Traub (1890–1983)
- Traugott-Olsen, EC Ernst Christian Traugott-Olsen (†2004)
- Trautvetter, ER (Trautv.) Ernst Rudolf von Trautvetter (1809–1889)
- Travassos, L Lauro Travassos
- Traver, JR Jay R. Traver
- Traverso, GB Giovanni Battista Traverso (1878–1955)
- Travis, WG (Travis) William Gladstone Travis (1877–1958)
- Trávníček, B (Trávn.) Bohumil Trávníček (1963– )
- Traylor, MA Melvin Alvah Traylor, Jr. (1915–2008)
- Treadaway, CG (Treadaway) Colin G.Treadaway
- Treat, AE Asher Eugene Treat (1907–2004)
- Trebbau, P Pedro Trebbau
- Trécul, A (Trécul) Auguste Trécul (1818–1896)
- Treitschke, F Friedrich Treitschke (1776–1842)
- Treitschke, W Wolfgang Treitschke
- Trelease, W (Trel.) William Trelease (1857–1945)
- Tremasov, VN (Tremasov) Vjacheslav N. Tremasov
- Trematerra, P (Trematerra) Pasquale Trematerra
- Trémaux, P (Trémaux) Pierre Trémaux (1818–1895)
- Trenerry, MP Michael P. Trenerry
- Tressens, SG (Tressens) Sara Graciela Tressens 1944–
- Tressler, WL Willis Lattanner Tressler
- Trest, MT (Trest) Marie Therese Trest
- Tretiach, M (Tretiach) Mauro Tretiach
- Treviranus, LC (Trevir.) Ludolph Christian Treviranus (1779–1864)
- Trevisan, R (R.Trevis.) Rafael Trevisan (1980– )
- Trevisan, VBA (Trevisan) Vittore Benedetto Antonio, conte Trevisan de Saint-Léon (1818–1897)
- Trew, CJ (Trew) Christoph Jakob Trew (1695–1769)
- Trewavas, E Ethelwynn Trewavas (1900–1993)
- Trewick, SA Steven A. Trewick
- Triana, JJ (Triana) José Jéronimo Triana (1834–1890)
- Triana, LA (L.A.Triana) Luz Amparo Triana-Moreno (1977– )
- Triapitsyn, SV Serguei Vladimirovich Triapitsyn
- Triberti, P Paolo Triberti
- Triebel, D Dagmar Triebel (1957– )
- Triebel, E Erich Triebel
- Triemer, RE (Triemer) Richard Ernest Triemer (1949– )
- Trietsch, C Carolyn Trietsch
- Trilles, JP Jean-Paul Trilles
- Trimen, H (Trimen) Henry Trimen (1843–1896)
- Trinius, C (Trin.) Carl Bernhard von Trinius (1778–1844)
- Trinkaus, U (Trinkaus) Ulrike Trinkaus
- Tripp, EA (E.A. Tripp) Erin Anne Tripp
- Tristram, HB Henry Baker Tristram (1822–1906)
- Troccoli, A Alberto Troccoli
- Trock, DK (Trock) Debra Kay Trock (fl. 1998)
- Trofimov, D (Trofimov ) [Dimitrij Trofimov]] (19..–)
- Trofimov, BA (B.A.Trofimov ) [Boris Alexandrovich Trofimov]] (1921–2003)
- Trofimovskaya, AYa (Trofim.) Alexandra Yakovlevna Trofimovskaya (1903–1991)
- Troìa, A (Troìa) Angelo Troìa (1967– )
- Tron, EZh (Tron) Evgenij Zhanovich Tron (1892–1960)
- Tronchet, F Frédéric Tronchet
- Troncoso, NS (Tronc.) Nélida Sara Troncoso (1914–1988)
- Troschel, FH Franz Hermann Troschel (1810–1882)
- Trost, S Susan Trost
- Trotter, A (Trotter) Alessandro Trotter (1874–1967)
- Troubridge, J (J.Troubridge) Jim Troubridge
- Troubridge, JT (J.T.Troubridge) James T.Troubridge
- Trouessart, EL Édouard Louis Trouessart (1842–1927)
- Troughton, ELG Ellis Le Geyt Troughton (1893–1974)
- Troupin, BMDJ (Troupin) Georges M.D.J. Troupin (1923– )
- Trudeau, JdB James de Berty Trudeau (1817–1887)
- Trudgen, ME (Trudgen) Malcolm Eric Trudgen (1951– )
- True, FW Frederick William True (1858–1914)
- Trueb, L Linda Trueb (1942– )
- Trueman, JWH John W. H. Trueman
- Trujano Ortega, M Marysol Trujano Ortega
- Trujillo-Arias, N Natalia Trujillo-Arias
- Truong, C (Truong) Camille Truong
- Trusch, R (Trusch) Robert Trusch
- Tryon, AF (A.F.Tryon) Alice Faber Tryon (1920–2009)
- Tryon, GW George Washington Tryon Jr (1838–1889)
- Tryon, RM Rolla Milton Tryon (1916–2001)
- Tsai, CF (C.F. Tsai) Chu-Fa Tsai
- Tsai, HT (H.T.Tsai) Hse Tao Tsai (1911–1981)
- Tsai, JH (J.H.Tsai) James H.Tsai
- Tsai, PH (P.H. Tsai) Pang-Hua Tsai
- Tsai, SC (S.C. Tsai) Su-Chen Tsai
- Tschermak-Woess, E (Tscherm.-Woess) Elisabeth Tschermak-Woess (1917–2001)
- Tschernetzkaja, ZS (Tschern.) Zinaida Sergeevna Tschernetzkaja (1890–?)
- Tscherneva, OV (Tscherneva) Olga Vladimirovna Tscherneva (1929–2023)
- Tschigova, VA Vera A. Tschigova
- Tschikolowez, WW (Tschikolowez) Wadim W. Tschikolowez
- Tschitscherine, TS Tichon Sergeiewitsch Tschitscherine (1869–1904)
- Tschopp, E Emanuel Tschopp
- Tschudi, JJ Johann Jakob von Tschudi (1818–1889)
- Tseng, S Sheng Tseng
- Tseng, W-Y Wen-Young Tseng
- Tshistjakov, YA (Thsistjakov) Yuri A. Tshistjakov
- Tsi, ZH (Z.H.Tsi) Zhan Huo Tsi (1937–2001)
- Tsiang, Y Ying Tsiang (1898–1982)
- Tsien, CP (C.P.Tsien) Cho Po Tsien (1916-)
- Tso, CL (C.L.Tso) Ching Lieh Tso
- Tso, IM I-Min Tso
- Tsoong, PC (P.C.Tsoong) Pu Chiu Tsoong (1906– )
- Tsou, CH (C.H.Tsou) Chih Hua Tsou
- Tsuchiya, K Kimiyuki Tsuchiya
- Tsuchiya, K Kotaro Tsuchiya
- Tsui, HP (H.P.Tsui) Hung Pin Tsui (1928–1994)
- Tsukagoshi, A Akira Tsukagoshi
- Tsukamura, M Michio Tsukamura
- Tsukaya, H (Tsukaya) Hirokazu Tsukaya (1964– )
- Tsukiyama, H (H.Tsukiyama) Hiroshi Tsukiyama
- Tsuneki, K Katsuji Tsuneki (1908–1994)
- Tsuneki, K Kazuhiko Tsuneki (b. 1947)
- Tsuru, T Tomoyuki Tsuru
- Tsvet, M Mikhail Tsvet (1882–1919)
- Tsytsulina, KA Katerina Alexandrovna Tsytsulina (1973– )
- Tu, HS Heisuo Tu
- Tu, LH Li-hong Tu
- Tu, YL (Y.L.Tu) Yu Lin Tu (1941– )
- Tu, YQ (Y.Q. Tu) Yong-Qin Tu
- Tubangui, MA Marcos A. Tubangui (1893–1949)
- Tubaro, PL Pablo L. Tubaro
- Tubergen, CG (Tubergen) Cornelis Gerrit van Tubergen (1844–1919)
- Tubeuf, C (Tubeuf) Carl von Tubeuf (1862–1941)
- Tuck, KR (Tuck) Kevin R. Tuck
- Tucker, RWE Richard William Ethelbert Tucker
- Tucker, SC (S.C.Tucker) Shirley Cotter Tucker (1927– )
- Tuckerman, E (Tuck.) Edward Tuckerman (1817–1886)
- Tuda, M Midori Tuda
- Tuero, DT Diego T. Tuero
- Tugay, O (Tugay) Osman Tugay (fl. 2007)
- Tuisl, G Gerhard Tuisl (1942– )
- Tukałło, P Piotr Tukałło (1977– )
- Tulasne, C. (C.Tul.) Charles Tulasne (1816–1884)
- Tulasne, E (Tul.) Louis René Tulasne (1815–1885)
- Tullberg, TFH Tycho Fredrik Hugo Tullberg (1842–1920)
- Tullgren, A Albert Tullgren
- Tulloch, MC (M.C. Tulloch) Margaret C. Tulloch
- Tumanov, DV Denis Vladimirovich Tumanov (1970—)
- Tumanova, TA Tatiana Alekseevna Tumanova (1952—)
- Tumka, AF (Tumka) Anatolij Feodosievich Tumka (1916—2009)
- Tun, H Hla Tun
- Tuneva, TK Tatiana Konstantinovna Tuneva
- Tunner, HG Heinz G. Tunner (1940– )
- Tunoglu, C Cemal Tunoglu
- Tunstall, M Marmaduke Tunstall (1743–1790)
- Tuomikoski, RK (Tuom.) Risto Kalevi Tuomikoski (1911–1989)
- Tuomisto, H (Tuomisto) Hanna Tuomisto
- Tuovila, H (Tuovila) Hanna Tuovila
- Tur, NM (Tur) Nuncia María Tur (1940– )
- Turan, D Davut Turan
- Turati, E (Turati) Emilio Turati (1858–1938)
- Turati, E Ernesto Turati
- Turati, G Gianfranco Turati (1861–1905)
- Turbott, EG Evan Graham Turbott
- Turczaninow, NS (Turcz.) Nicolai Stepanowitsch Turczaninow (1796–1863)
- Turini, F (Turini) Florian Turini
- Turk, FAS Frank Archibald Sinclair Turk (1911–1996)
- Türk, AÖ (A.Ö. Türk) Ayşen Özdemir Türk
- Türk, R (Türk) Roman Türk
- Türkmen, Z (Türkmen) Zafer Türkmen (fl. 2010)
- Turland, NJ (Turland) Nicholas Turland (1966– )
- Turlin, B Bernard Turlin
- Turner, AA Andrew A. Turner
- Turner, AJ Alfred Jefferis Turner (1861–1947)
- Turner, BJ Bruce J. Turner
- Turner, BL (B.L.Turner) Billie Lee Turner (1925– )
- Turner, CH Charles Henry Turner
- Turner, CL Clarence Lester Turner
- Turner, D (Turner) Dawson Turner (1775–1858)
- Turner, GF George Francis Turner
- Turner, IM (I.M.Turner) Ian Mark Turner (1963– )
- Turner, JM John M. Turner
- Turner, MD (M.D.Turner) Melvin D. Turner (fl. 1988)
- Turner, RD Ruth Dixon Turner (1914–2000)
- Turner, RE Rowland Edwards Turner (1863–1945)
- Turner Ettlinger, DM (Turner Ettl.) D.M. Turner Ettlinger
- Türpe, AM (Türpe) Anna Maria Türpe (1946– )
- Turpin, PJF (Turpin) Pierre Jean François Turpin (1775–1840)
- Turra, A (Turra) Antonio Turra (1730–1796)
- Turrill, WB (Turrill) William Bertram Turrill (1890–1961)
- Turton, W William Turton (1762–1835)
- Turton, WH William Harry Turton (1856–1938)
- Tuskes, PM (Tuskes) Paul M. Tuskes
- Tutcher, WJ (Tutcher) William James Tutcher (1867–1920)
- Tuthill, LD Leonard D. Tuthill
- Tutin, TG (Tutin) Thomas Gaskell Tutin (1908–1987)
- Tutt, JW James William Tutt (1858–1911)
- Tuttle, JP (Tuttle) James P. Tuttle
- Tuxen, SLP Sören Ludvig Paul Tuxen (1908–1983)
- Tuyama, T Takasi Tuyama (1910–2000)
- Tuzet, O (Tuzet) Odette Tuzet (1903–1976)
- Tuzov, VK (Tuzov) Vasili K. Tuzov
- Tvardik, D David Tvardik
- Tweeddale, AH Arthur Hay, 9th Marquess of Tweeddale (1824–1878)
- Tweedie, J John Tweedie (1775–1862)
- Tweedie, MWF Michael Wilmer Forbes Tweedie (1907–1993)
- Twitty, VC Victor Chandler Twitty (1901–1967)
- Twomey, E Evan Twomey
- Tyagi, K Kaomud Tyagi
- Tyler, JC James C. Tyler
- Tyler, MJ Michael James Tyler (1937–2020)
- Tyler, T (T.Tyler) Torbjörn Tyler (1973– )
- Tymowska, J Janina Tymowska
- Tyshchenko, VP Victor P. Tyshchenko (1937–1986)
- Tyteca, DRSM Daniel Séraphin René Marie Tyteca
- Tytler, RC Robert Christopher Tytler (1818–1872)
- Tzankov, V Vassil Tzankov (1905–1986)
- Tzanoudakis, DB (Tzanoud.) Dimitrios B. Tzanoudakis (1950– )
- Tzareva, L Ludmila Tzareva
- Tzen, CS (C.S.Tzen) Chao-Shian Tzen
- Tzetlin, AB Alexander Borisovich Tzetlin (1954–)
- Tzuoo, HR (H.R. Tzuoo) Han-Rong Tzuoo
- Tzvelev, NN Nikolai Nikolaievich Tzvelev (1925–2015)