Tatjana Sjakste (1953-2016) – Doctor of Biology (Dr. biol.), leading researcher at the Institute of Biology of the University of Latvia. >>

Konstantin Sklyarevich (1921–2003) – Habilitated Doctor of Computer Science (Dr. habil. sc. comp.), professor of the Riga Institute of Civil Aviation engineering, senior scientific collaborator of the Institute of Electronics and Computing Engineering of the Academy of Sciences of Latvia (1975-2003). >>

Nikolay Solovey (1921-?) – Candidate of Philology, lecturer of the Chair of Russian and Foreign literature of the Latvian State University. >>

Ludmila Sproge (1953) – professor, from 2002 Head of the Department of Russian and Slav languages of the faculty of Humanitarian Sciences of the University of Latvia. >>

Margarita Surgucheva (1931) – a Candidate of Technical Sciences, Docent of Computing machinery departament of Riga Polytechnic Institute. >>

Mikhail Tareyev (1867-1934) – is a famous thinker, Russian religious philosopher, theologian, writer, professor of the Moscow Holy Academy. >>

Yuri Tarnopolsky (1929–2003) – an outstanding scientist in the field of mechanics, Academician of  Latvian Academy of Sciences. >>

Galina Telysheva (1937-2021) – Professor, Habilitated Doctor of Chemistry (Dr. habil. chem.), a specialist in the field of wood chemistry and its components. >>

Natalia Temnikova (1904-1984) – a famous climate specialist, Doctor of Geography, professor of the University of Latvia. >>

Viktor Timofeyev (1927-1986) – Doctor of Economic Sciences, Correspomdent Member of the Academy of Sciences of Latvian SSR (1982), Rector of the Latvian Agricultural Academy (1980-1986). >>