Alexander Porokhovshchikov (1892-1941) – he tested one of the first Russian aircraft in Riga in 1911, and  the first tank in 1915. Shot in Moscow in 1941. >>

Konstantin Portnov (1908-1943) –  a teacher, old-believer`s public figure, teacher of clerical law, anti-fascit. Shot by the Nazi. >>

Komita Portnova (born Yershova;1901 -1943?) – a teacher, anti-fascist, shot bu the Nazi. >>

Stepan Posevin (1880-1941) – an officer or Russian and Latvian  army, author of some books. In 1940, Stepan Posevin was arrested by the NKVD and shot on April 3, 1941. >>

Zinaida Posnikova (1910–1976) –  an accordeon player and pianist. >>

Pyotr Posnykov (1876–1930) – a pianist and teacher. >>

Galina Pospelova (1936–2018) – a teacher of history, Director of Riga 76th secondary school. Founder and Director of Riga Technolinguistic private secondary school. Honored teacher of the Latvian SSR, Doctor of pedagogy (Dr. paed.). >>

Boris Potulov (1903-1979) – a cello player, harp player, saksophonist and accordeon player. >>

Dmitry Potulov (1901–1985) – a member of the White movement, musician. >>

Sergey Potulov (1891-1964) – a colonel-lieutenant of the Latvian army, musician. >>