Vladimir Merkulov (1944) – Doctor of Engineering (Dr. sc. ing.), docent of Riga Technical University. >>

Nikolai Merkuliev (1851–1925) – Riga merchant, first chairman of the Riga Theater Society, major Russian public figure, member of the Riga City Council, honorary citizen. >>

Anatoly Merkeryev (1932-2009)  – director of Riga Shipmechanic plant, from 1988 to 1990 – the first deputy of General director of Latvian administration of fish industry. >>

Yuri Muratov (1935) – a Docent of the Riga Polytechnic institute, Candidate of Technical Sciences. >>

Catherine Mickiewicz (nee Jacobi; 1903–1976) – a daughter of a well-known lawyer, public figure and publicist Pyotr Jacobi. >>

Denis Mickewicz (1929) – PhD in Slavic Languages and Comparative Literature. Director of the Russian Choir of Yale University (USA). >>

Nikolai Mickiewicz (1902–1993) – a spouse of Catherine Jacobi. >>

Antony Midunetsky (1888–1955) – a choir-man of the Riga Grebentchikov Old-believer's community, self-taught poet. >>

Ivan (Jānis) Mikelson (1871–1939) –  a singer (tenor), choir regent, composer. >>

Alexey Mikhailov (1927–1987) – an actor of the Riga Theater of Russian Drama (1958-1987). >>