Lidia  Rybakova (1935-2018) – a general physician. >>

Yuri (George) Rykovski (1893–1938) – a theatre decorator, a costume artist. >>

Gali Sabardina (1914-1973) – a geobotanist, Doctor of Biology Sciences, correspondent member of Latvian Academy of Science (1968), Deputy Director of the Institute of Biology of the Academy of Sciences of the Latvian SSR (1951-1973). >>

Irina Saburova (1907-1979) – writer. Wrote the novel «Ships of the Old Town»; the only fiction work of «Russian Riga». >>

Vladimir Sadikov (1874-1942) – a biochemist, scientific collaborator of resort Kemeri (Riga Seaside), later professor of the Leningrad State University. >>

Firs Sadovnikov (1789–1853) – a merchant of the 1st guild, donor. >>

Gennady Sagalovich (1936–2015) – Habilitated Doctor of Engineering (Dr. habil. sc. ing.), Professor of the Riga Technical University. >>

Sergey Sakharov (1880-1954) – teacher, historian of the Russian Orthodox Church, ethnographer, publicist. >>

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Alexander Sallak (1885 -?) –  a teacher of History and Russian, Deputy Head of the Russian department of the Ministry of Education of the Republic of Latvia from 1920 to 1934. >>