Boris Lobzov (1934) –  assistant professor of the Chair of Engineering and Automatization of industrial processes of Riga Polytechnic Institute (from 1990 – Riga Technical University). >>

Yuri Logachov (1924 - 2003) - habilitated doctor of engineering, assistant professor, inventor. >>

Mikhail Loginov (1865-1945) – hautboist, choir conductor and conductor of military brass band. He lived and worked in Riga from 1897 to 1911. >>

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Alexander Losev (1925-1997) – Doctor of Pedagogics, specialist in Russian-Latvian literary links. >>

Alexey Losev (1921 - 1989) - professor, doctor of technical sciences, specialist in the field of aviation. >>

Nikolay Lossky (1870 – 1965) – outstanding representative of Russian religious philosophy. >>

Luka Lotko (1924 - 1997) - lawyer. >>

Alexander Lozynsky (1868-1961) – professor, one of the founders of Latvian and Russian balneology. From 1904 to 1915- director of balneological and climatic health resort in Kemeri (Riga Seaside). >>

Olga Lukashina (1950) -  doctor of economics (Dr.oec.), specialist in tax law. >>