Leonid S Ostrouchow (1867-1937) – a senior advisor to the Livonia governorate, public and theatrical figure, teacher. >>

Nikolay Ovcharov (1868–1933) – a colonel. >>

Sergey Ovsyukov (1941) – Doctor of Engineering (Dr. sc. ing.), Docent of the Riga Polytechnic Institute (from 1990 – Riga Technical University). >>

Ilga Ozish (1945-2023) – programmer, public figure, well-known human rights activist, one of the founders and long-term member of the Latvian Human Rights Committee. >>

Nikolai Osmidoff (1850-1938) – professor of the Riga Polytechnik Institute, famous specialisn in electrical engineering.  >>

Marianna Ozolinya (1939) – from 1973 to 2013 Curator of the Museum of St Peter's Church in Riga, poet. >>

Tatyana Pabayskaya (1921- ?) – Candidate of Philology Sciences, Head of the chair of Russian language, docent of the chair of Russian Literaturee  of the Latvian State University. >>

Carl Magnus von der Pahlen (1779–1863) – baron, cavalry general. Riga military governor, at the same time governor-general of Estonia, Livonia and Courland (1830–1845). >>

Maryan Pakhar (1976) –  a famous Latvian football player, played for the Latvian National team in 1996-2007. From 2013  to 2017 was the main coach of the Latvian National football team. >>

Valentina Pakhomova (1931-2016) – a teacher of Maths at the Riga 10th Secondary School from 1956 to 2005. >>