Leonid Tsilevitch (1925-2017) – Habilitated Doctor of Philology (Dr. habil. philol.), professor of Daugavpils Pedagogical Institute. >>

Ksenia Tsirule (1937) – Doctor of Egineering (Dr. sc. ing.), a specialist in the field of physics and mechanics of polymers. >>

Gennadiy Tsvetkov (1935-2011) –  Doctor of Engineering (Dr. sc. ing.), Docent of the Riga Technical University. >>

Galina Tunik-Rosniansky (193-2021) – a Founding member of the "Books for Russia" committee, linguist, professional diplomatic translator, active worker of the Washington branch of the Russian Academic Group in the USA. >>

Vladislav Turko (1950) –  Doctor of Engineering (Dr. sc. ing.), a specialist in the field of aviation cinstructions. >>

Frants Turonok (1944) –  Doctor of Engineering (Dr. sc. ing.), a Head of the Chair of Engineering Machinery of the Riga Technical University.  >>

Nikolay Tyunin (1940–2021) – Doctor of Technical Sciences, a specialist in experimental aerodynamics. >>

Vladimir Tyunin (1934) – a specialist in the fields of metals, Doctor of Engineering (Dr. sc. ing.). >>

Erika Tyunina (1936) – Doctor of Engineering (Dr. sc. ing.), a specialist in the fields of physics and machanics of polymers. From 1987 to 2006 scientific secretary of the Department of physics an technical sciences of Latvian Acasemy os Sciences. >>

Yuri Urzhumcev (1929-2002) –  Doctor of Technical Sciences, a specialist in the field of physics and mechanics of polymers, correspondent-member of Latvian Academy of Sciences (1973). >>