Seraphim (secular name Semyon Protopopov; 1818-1891) – a bishop of Riga and Jelgava (1874-1877). >>
Lydia Seraya (1936-2020) – a teacher of Latvian and Russian. >>
Tarasiy Seredinsky (1822-1897) – an archpriest. >>
Nikolay Sergeyev (1876-1951) – a choreographer, teacher and ballet dancer, worked at the Latvian National opera as ballet producer in 1922-1925. >>
Oleg Sergeyev (1932-1996) – Candidate of Technical Sciences, Docent of the Riga Polytechnic Institute. >>
Varvara Sergeyeva (1902-1997) – a Full Member of the Latvian Academy of Sciences, prominent expert in the chemistry of wood. >>
Ludmila Sergeyeva (1941) – Doctor of Engineering (Dr. sc. ing.), associate professor of the Riga Technical University. >>
Sergius (Voskresensky; 1897-1944) – Metropolitan of Vilnius and Lithuania and Exarch of Latvia and Estonia. >>
Fyodor Serkov (1883-1962) – a teacher, from 191 to 1915 co-owner of the Private School in Riga. In 1924-1925 – Head of the Russian Division of the Department of National Minorities of the Ministry of Education of the Republic of Latvia. >>
Vladimir Surovtsev (1865-1900) – a general, governor of the Livonia Governorate. >>