Yuri Abyzov (1921–2006) – a writer, a translator, a bibliographer, a specialist in literature, the leading specialist in the history of Russian culture in the Baltics. Yuri Abyzov was the founder and a long-time chairman of the Latvian Association of Russian Culture. >>

Semyon Ainbinder (1914–1984) – Doctor of Technical Sciences, specialist in the field of mechanics. >>

Ivan Alexandrovsky (1817-1894) – an inventor of the first submarine with mechanic engine in the Russian Empire and the first torpedo in the world. >>

Alexander Andronov (1937) – professor, hab. doctor of engineering, specialist on the field of aviation. >>

Valeriy  Anisimov (1940) – Doctor of Engineering Sciences, Vice-Rector of the Riga Institute of Civil Aviation Engineers (1975–1984). >>

Maximilian Antimirov (1937–2005) – Habilitated Doctor of Mathematics, professor of Riga Technical University. >>

Konstantin Arabazhin (1865–1929) – professor of Slavic philology, founder and rector of the Russian University Courses in Riga in 1921. >>

Leonid Arbuzov (1848 -1912) – scientist-historian. >>

Emma Arkhangelskaya (1951)  – linguist, doctor of philology. >>

Yuri Artyukh (1943-2012) – Habilitated Doctor of Computer Studies, professor, specialist in the field of informatics and computer technology.  >>