• Tàíôèëüåâ Ãàâðèèë Lâàíîâè÷ (1857–1928)

• *Tàõòàäæÿí Lðìåí Tåîíîâè÷ (ðîä. 10.06.1910)

• T¸ððèëë Óèëüÿì – Turrill William Bertram [1890–1961]

• Tèìîôååâ-Ðåñîâñêèé Íèêîëàé Âëàäèìèðîâè÷ (1900-1981)

• Tèíåìàí Àâãóñò Ôðèäðèõ – Thienemann August Friedrich (1882–1960)

• Tîëìà÷¸â Àëåêñàíäð Èííîêåíòüåâè÷ (1903–1979)

• Tîðñîí Ãóííàð – Thorson Gunnar Axel Wright (1906–1971)

• Tðåâèðàíóñ Ãîòôðèä ³åéíõîëüä – Treviranus Gottfried Reinhold (1776–1837)

• Tðîëëü Êàðë – Troll Carl (1899–1975)

• Týíñëè Àðòóð Äæîðäæ – Tansley Arthur George (1871–1955)