| Oznobin Roman Aleksandrovich b. 01.07.1979 · Registered · A Just Russia | Regional assembly, Republic of Mordovia, 2007 02.12.2007 · Republic of Mordovia |
| Ozolin Ivan Ivanovich b. 20.05.1963 · Registered · United Russia | Regional assembly, Smolensk Oblast, 2007 02.12.2007 · Smolensk Oblast |
| Ozrokova Lena Mukhamedovna b. 27.10.1949 · Registered · Voters’ group | Regional assembly, Kabardino-Balkarian Republic, 2003 07.12.2003 · Kabardino-Balkarian Republic |
| Ozyava Maksim Edislavovich b. 18.09.1976 · Registered · Party of Pensioners | Regional assembly, Khanty-Mansi Autonomous Okrug, 2006 12.03.2006 · Khanty-Mansi Autonomous Okrug |
| Oybolatov Abduragim Oybolatovich b. 08.02.1966 · Registered · United Russia | Regional assembly, Republic of Dagestan, 2011 13.03.2011 · Republic of Dagestan |
| Oybolatov Abduragim Oybolatovich b. 08.02.1966 · Registered · United Russia | Regional assembly, Republic of Dagestan, 2007 11.03.2007 · Republic of Dagestan |
| Oydupaa Aydyn Klimovich b. 10.03.1968 · Registered · Self-nomination | Regional assembly, Tuva Republic, 2002 02.06.2002 · Tuva Republic |
| Oydupaa Aydyn Klimovich b. 10.03.1968 · Registered · Self-nomination | Regional assembly, Tuva Republic, 2002 23.06.2002 · Tuva Republic |
| Oynosheva Svetlana Sergeevna b. 20.08.1963 · Registered · "Altayskoe respublikanskoe otdelenie "Kommunisticheskoy partii Rossiyskoy Federatsii" | Regional assembly, Altai Republic, 2010 14.03.2010 · Altai Republic |
| Oysboyt Mikhail Izrailevich b. 23.06.1952 · Registered · Voters’ group | Regional assembly, Kaliningrad Oblast, 2006 12.03.2006 · Kaliningrad Oblast |
| Oysboyt Mikhail Izrailevich b. 23.06.1952 · Registered · Self-nomination | Regional assembly, Kaliningrad Oblast, 2000 05.11.2000 · Kaliningrad Oblast |
| Okaev Sergey Vasilevich b. 23.10.1954 · Registered · Self-nomination | Regional assembly, Yamalo-Nenets Autonomous Okrug, 2000 26.03.2000 · Yamalo-Nenets Autonomous Okrug |
| Okatev Dmitriy Anatolevich b. 18.04.1959 · Registered · Yabloko | State Duma, 2007 02.12.2007 · Russian Federation |
| Okatev Dmitriy Anatolevich b. 18.04.1959 · Registered · Yabloko | Regional assembly, Sverdlovsk Oblast, 2006 08.10.2006 · Sverdlovsk Oblast |
| Okatev Igor Vasilevich b. 05.11.1979 · Registered · Patriots of Russia | Regional assembly, Kamchatka Krai, 2007 02.12.2007 · Kamchatka Krai |
| Okishev Valeriy Fedorovich b. 21.04.1949 · Registered · Patriots of Russia | Regional assembly, Samara Oblast, 2011 04.12.2011 · Samara Oblast |
| Okishorov Aleksandr Vladimirovich b. 04.09.1970 · Registered · Patriots of Russia | Regional assembly, Tyumen Oblast, 2011 04.12.2011 · Tyumen Oblast |
| Okkaeva Zargan Said-Magomedovna b. 1974 · Registered · LDPR | Regional assembly, Chechen Republic, 2026 20.09.2026 · Chechen Republic |
| Okkan Oleg Kuuskaalovich b. 19.12.1959 · Registered · Self-nomination | Regional assembly, Tuva Republic, 2006 08.10.2006 · Tuva Republic |
| Okkel Viktor Germanovich b. 29.09.1958 · Registered · United Russia | Regional assembly, Tomsk Oblast, 2011 04.12.2011 · Tomsk Oblast |
| Okladnikov Aleksey Borisovich b. 22.05.1965 · Registered · Voters’ group | Regional assembly, Yaroslavl Oblast, 2004 14.03.2004 · Yaroslavl Oblast |
| Okladnikov Aleksey Borisovich b. 22.05.1965 · Registered · Voters’ group | Regional assembly, Yaroslavl Oblast, 2004 14.03.2004 · Yaroslavl Oblast |
| Okladnikova Ekaterina Konstantinovna b. 1990 · Registered · New People | Regional assembly, Omsk Oblast, 2026 20.09.2026 · Omsk Oblast |
| Okmazov Zainudin Dadabegovich b. 10.10.1952 · Registered · Patriots of Russia | Regional assembly, Republic of Dagestan, 2011 13.03.2011 · Republic of Dagestan |
| Okmazov Zaynudin Dadabegovich b. 10.10.1952 · Registered · Patriots of Russia | Regional assembly, Republic of Dagestan, 2007 11.03.2007 · Republic of Dagestan |
| Okovantsev Aleksandr Leonidovich b. 29.10.1978 · Registered · Patriots of Russia | State Duma, 2007 02.12.2007 · Russian Federation |
| Okolovich Liliya Grigorevna b. 27.03.1967 · Registered · CPRF | Regional assembly, Magadan Oblast, 2010 10.10.2010 · Magadan Oblast |
| Okolnikova Svetlana Anatolevna b. 03.12.1958 · Registered · Voters’ group | Regional assembly, Republic of Khakassia, 2004 26.12.2004 · Republic of Khakassia |
| Okoneshnikov Nikolay Egorovich b. 10.05.1953 · Registered · Self-nomination | Regional assembly, Sakha Republic (Yakutia), 2002 29.12.2002 · Sakha Republic (Yakutia) |
| Okonov Vasiliy Bambaevich b. 20.06.1956 · Registered · Kalmytskoe regionalnoe otdelenie Politicheskoy partii "Agrarnaya partiya Rossii" | Regional assembly, Republic of Kalmykia, 2008 02.03.2008 · Republic of Kalmykia |
| Okrashev Viktor Kazhanovich b. 02.10.1958 · Registered · Self-nomination | Regional assembly, Altai Republic, 2001 16.12.2001 · Altai Republic |
| Okrugin Ivan Valerevich b. 10.11.1982 · Registered · LDPR | Regional assembly, Jewish Autonomous Oblast, 2006 08.10.2006 · Jewish Autonomous Oblast |
| Okrugin Ivan Valerevich b. 10.11.1982 · Registered · LDPR | Regional assembly, Jewish Autonomous Oblast, 2006 08.10.2006 · Jewish Autonomous Oblast |
| Oksentyuk Nikolay Vasilevich b. 30.01.1963 · Registered · Voters’ group | Regional assembly, Tyumen Oblast, 2007 11.03.2007 · Tyumen Oblast |
| Oksenyuk Marina Yurevna b. 1989 · Registered · CPRF | Regional assembly, Novosibirsk Oblast, 2025 14.09.2025 · Novosibirsk Oblast |
| Oksin Vasiliy Ivanovich b. 26.12.1957 · Registered · Self-nomination | Repeat · Regional assembly, Ulyanovsk Oblast, 2004 14.03.2004 · Ulyanovsk Oblast |
| Okulov Aleksandr Leonidovich b. 27.05.1984 · Registered · Samovydvizhenie | Regional assembly, Arkhangelsk Oblast, 2009 01.03.2009 · Arkhangelsk Oblast |
| Okulov Viktor Mikhaylovich b. 06.09.1942 · Registered · Voters’ group | Regional assembly, Arkhangelsk Oblast, 2004 19.12.2004 · Arkhangelsk Oblast |
| Okulov Konstantin Grigorevich b. 15.05.1955 · Registered · A Just Russia | Regional assembly, Arkhangelsk Oblast, 2009 01.03.2009 · Arkhangelsk Oblast |
| Okulova Larisa Petrovna b. 22.04.1977 · Registered · CPRF | Regional assembly, Udmurt Republic, 2007 02.12.2007 · Udmurt Republic |
| Okulova Larisa Petrovna b. 22.04.1977 · Registered · CPRF | Regional assembly, Udmurt Republic, 2007 02.12.2007 · Udmurt Republic |
| Okulova Lyubov Konstantinovna b. 23.04.1958 · Registered · Self-nomination | Regional assembly, Arkhangelsk Oblast, 2001 07.10.2001 · Arkhangelsk Oblast |
| Okulova Tatyana Aleksandrovna b. 09.09.1960 · Registered · Self-nomination | Regional assembly, Nenets Autonomous Okrug, 2001 14.01.2001 · Nenets Autonomous Okrug |
| Okunev Aleksey Leonidovich b. 28.07.1976 · Registered · Yabloko | State Duma, 2011 04.12.2011 · Russian Federation |
| Okunev Artem Vasilevich b. 17.12.1983 · Registered · Samovydvizhenie | Regional assembly, Republic of Karelia, 2011 04.12.2011 · Republic of Karelia |
| Okunev Dmitriy Aleksandrovich b. 15.10.1970 · Registered · Yabloko | Regional assembly, Republic of Karelia, 2011 04.12.2011 · Republic of Karelia |
| Okunev Konstantin Nikolaevich b. 05.12.1968 · Registered · CPRF | Regional assembly, Perm Krai, 2011 04.12.2011 · Perm Krai |
| Okunev Mikhail Evgenevich b. 26.10.1975 · Registered · Voters’ group | Regional assembly, Voronezh Oblast, 2005 20.03.2005 · Voronezh Oblast |
| Okunev Sergey Ivanovich b. 05.09.1953 · Registered · Party of Pensioners | Regional assembly, Kursk Oblast, 2006 12.03.2006 · Kursk Oblast |
| Okunev Sergey Nikolaevich b. 20.07.1962 · Registered · LDPR | Regional assembly, Sakha Republic (Yakutia), 2008 02.03.2008 · Sakha Republic (Yakutia) |
