| Osmak Igor Anatolevich b. 1983 · Registered · CPRF | Regional assembly, Novosibirsk Oblast, 2025 14.09.2025 · Novosibirsk Oblast |
| Osminina Marina Viktorovna b. 1971 · Registered · United Russia | Regional assembly, Voronezh Oblast, 2025 14.09.2025 · Voronezh Oblast |
| Otboyschikov Vitaliy Vladimirovich b. 1978 · Registered · LDPR | Regional assembly, Omsk Oblast, 2026 20.09.2026 · Omsk Oblast |
| Otboyschikov Vitaliy Vladimirovich b. 1978 · Registered · LDPR | Regional assembly, Omsk Oblast, 2026 20.09.2026 · Omsk Oblast |
| Otboyschikov Vladislav Vitalevich b. 2002 · Registered · LDPR | Regional assembly, Omsk Oblast, 2026 20.09.2026 · Omsk Oblast |
| Otboyschikova Tatyana Alekseevna b. 1980 · Registered · LDPR | Regional assembly, Omsk Oblast, 2026 20.09.2026 · Omsk Oblast |
| Otuk-ool Orlan Olegovich b. 13.11.1972 · Registered · LDPR | Regional assembly, Tuva Republic, 2006 08.10.2006 · Tuva Republic |
| Ofarinov Vladimir Leonidovich b. 03.12.1961 · Registered · Patriots of Russia | Regional assembly, Chuvash Republic, 2006 08.10.2006 · Chuvash Republic |
| Ofarinov Vladimir Leonidovich b. 03.12.1961 · Registered · Patriots of Russia | Regional assembly, Chuvash Republic, 2006 08.10.2006 · Chuvash Republic |
| Okhalin Maksim Sergeevich b. 30.08.1978 · Registered · Rodina | Regional assembly, Novosibirsk Oblast, 2005 11.12.2005 · Novosibirsk Oblast |
| Okhlopkov Filipp Gavrilevich b. 15.06.1936 · Registered · CPRF | Regional assembly, Sakha Republic (Yakutia), 2002 29.12.2002 · Sakha Republic (Yakutia) |
| Okhonko Nikolay Anatolevich b. 17.02.1955 · Registered · United Russia | Regional assembly, Stavropol Krai, 2007 11.03.2007 · Stavropol Krai |
| Okhotnikov Vyacheslav Dmitrievich b. 03.09.1963 · Registered · LDPR | Regional assembly, Kirov Oblast, 2006 12.03.2006 · Kirov Oblast |
| Okhotnikov Yuriy Ivanovich b. 11.02.1962 · Registered · United Russia | Regional assembly, Mari El Republic, 2004 10.10.2004 · Mari El Republic |
| Okhokhonina Elena Nikolaevna b. 1976 · Registered · New People | Regional assembly, Kurgan Oblast, 2025 14.09.2025 · Kurgan Oblast |
| Okhokhonina Milena Alekseevna b. 2004 · Registered · New People | Regional assembly, Kurgan Oblast, 2025 14.09.2025 · Kurgan Oblast |
| Okhokhonina Milena Alekseevna b. 2004 · Registered · New People | Regional assembly, Kurgan Oblast, 2025 14.09.2025 · Kurgan Oblast |
| Okhrimenko Aleksandr Ivanovich b. 1988 · Registered · CPRF | Regional assembly, Ryazan Oblast, 2025 14.09.2025 · Ryazan Oblast |
| Okhrimenko Aleksandr Ivanovich b. 1988 · Registered · CPRF | Regional assembly, Ryazan Oblast, 2025 14.09.2025 · Ryazan Oblast |
| Okhryamkin Stepan Andreevich b. 1993 · Registered · New People | Regional assembly, Kaluga Oblast, 2025 14.09.2025 · Kaluga Oblast |
| Okhryamkin Stepan Andreevich b. 1993 · Registered · New People | Regional assembly, Kaluga Oblast, 2025 14.09.2025 · Kaluga Oblast |
| Ochinskaya Zinaida Dmitrievna b. 09.01.1948 · Registered · LDPR | Regional assembly, Oryol Oblast, 2007 11.03.2007 · Oryol Oblast |
| Ochur Nadezhda Maadyr-oolovna b. 14.10.1972 · Registered · CPRF | Repeat · Regional assembly, Tuva Republic, 2007 11.03.2007 · Tuva Republic |
| Ochkhikidze Avtandil Sergeevich b. 1965 · Registered · United Russia | By-election · Regional assembly, Rostov Oblast, 2026 20.09.2026 · Rostov Oblast |
| Osherov Ilya Semenovich b. 02.05.1950 · Registered · United Russia | Regional assembly, Murmansk Oblast, 2007 11.03.2007 · Murmansk Oblast |
| Oshmarina Natalya Filippovna b. 01.01.1948 · Registered · CPRF | Regional assembly, Voronezh Oblast, 2005 20.03.2005 · Voronezh Oblast |
| Oshurkov Dmitriy Leonidovich b. 1969 · Registered · LDPR | Regional assembly, Yamalo-Nenets Autonomous Okrug, 2025 14.09.2025 · Yamalo-Nenets Autonomous Okrug |
| Oschepkova Svetlana Mikhaylovna b. 17.09.1960 · Registered · United Russia | Regional assembly, Tuva Republic, 2006 08.10.2006 · Tuva Republic |
| Oschepkova Svetlana Mikhaylovna b. 17.09.1960 · Registered · United Russia | Repeat · Regional assembly, Tuva Republic, 2007 11.03.2007 · Tuva Republic |
| Oyun Vadim Orambalovich b. 01.01.1944 · Registered · United Russia | Regional assembly, Tuva Republic, 2006 08.10.2006 · Tuva Republic |
| Oyun Kim Kyzyl-oolovich b. 01.11.1963 · Registered · CPRF | Regional assembly, Tuva Republic, 2006 08.10.2006 · Tuva Republic |
| Oyun Kim Kyzyl-oolovich b. 01.11.1963 · Registered · CPRF | Regional assembly, Tuva Republic, 2006 08.10.2006 · Tuva Republic |
| Pavelchuk Aleksandr Alekseevich b. 1976 · Registered · New People | Regional assembly, Voronezh Oblast, 2025 14.09.2025 · Voronezh Oblast |
| Pavin Nikolay Nikolaevich b. 1986 · Registered · New People | Regional assembly, Kurgan Oblast, 2025 14.09.2025 · Kurgan Oblast |
| Pavina Nadezhda Vladimirovna b. 1981 · Registered · New People | Regional assembly, Kurgan Oblast, 2025 14.09.2025 · Kurgan Oblast |
| Pavina Nadezhda Vladimirovna b. 1981 · Registered · New People | Regional assembly, Kurgan Oblast, 2025 14.09.2025 · Kurgan Oblast |
| Pavlenko Bogdan Sergeevich b. 07.10.1975 · Registered · CPRF | Regional assembly, Tula Oblast, 2004 03.10.2004 · Tula Oblast |
| Pavlenko Viktor Nikolaevich b. 17.04.1962 · Registered · United Russia | Regional assembly, Arkhangelsk Oblast, 2004 19.12.2004 · Arkhangelsk Oblast |
| Pavlenko Roman Sergeevich b. 1985 · Registered · LDPR | Regional assembly, Yamalo-Nenets Autonomous Okrug, 2025 14.09.2025 · Yamalo-Nenets Autonomous Okrug |
| Pavlik Denis Anatolevich b. 1976 · Registered · United Russia | Regional assembly, Magadan Oblast, 2025 14.09.2025 · Magadan Oblast |
| Pavlinov Yuriy Aleksandrovich b. 1982 · Registered · LDPR | Regional assembly, Pskov Oblast, 2026 20.09.2026 · Pskov Oblast |
| Pavlinov Yuriy Aleksandrovich b. 1982 · Registered · LDPR | Regional assembly, Pskov Oblast, 2026 20.09.2026 · Pskov Oblast |
| Pavlinchikov Vyacheslav Viktorovich b. 1944 · Registered · Party of Pensioners | Regional assembly, Sevastopol, 2019 08.09.2019 · Sevastopol |
| Pavlischev Aleksandr Nikolaevich b. 1989 · Registered · New People | Regional assembly, Novosibirsk Oblast, 2025 14.09.2025 · Novosibirsk Oblast |
| Pavlov Andrey Nikolaevich b. 1976 · Registered · Communists of Russia | Regional assembly, Sevastopol, 2019 08.09.2019 · Sevastopol |
| Pavlov Valentin Ivanovich b. 27.09.1950 · Registered · LDPR | Regional assembly, Voronezh Oblast, 2005 20.03.2005 · Voronezh Oblast |
| Pavlov Vladimir Petrovich b. 12.10.1942 · Registered · CPRF | Regional assembly, Voronezh Oblast, 2005 20.03.2005 · Voronezh Oblast |
| Pavlov Vyacheslav Petrovich b. 17.08.1946 · Registered · A Just Russia | Regional assembly, Chelyabinsk Oblast, 2015 13.09.2015 · Chelyabinsk Oblast |
| Pavlov Denis Yurevich b. 06.10.1971 · Registered · LDPR | Regional assembly, Primorsky Krai, 2006 08.10.2006 · Primorsky Krai |
| Pavlov Igor Aleksandrovich b. 03.08.1983 · Registered · LDPR | Regional assembly, Moscow Oblast, 2007 11.03.2007 · Moscow Oblast |
