| Kosolapova Galina Nikolaevna b. 20.11.1948 · Registered · Voters’ group | Regional assembly, Kirov Oblast, 2006 12.03.2006 · Kirov Oblast |
| Kosolapova Natalya Vasilevna b. 22.05.1954 · Registered · A Just Russia | Regional assembly, Kaliningrad Oblast, 2011 13.03.2011 · Kaliningrad Oblast |
| Kosorotikova Liliya Vasilevna b. 16.04.1980 · Registered · A Just Russia | Regional assembly, Tomsk Oblast, 2011 04.12.2011 · Tomsk Oblast |
| Kosorukikh Oleg Nikolaevich b. 14.08.1963 · Registered · Voters’ group | Regional assembly, Lipetsk Oblast, 2002 14.04.2002 · Lipetsk Oblast |
| Kostakov Dmitriy Vladimirovich b. 14.11.1985 · Registered · LDPR | Regional assembly, Vladimir Oblast, 2009 01.03.2009 · Vladimir Oblast |
| Kostarev Evgeniy Nikolaevich b. 1979 · Registered · New People | Regional assembly, Komi Republic, 2025 14.09.2025 · Komi Republic |
| Kostarev Evgeniy Petrovich b. 19.09.1959 · Registered · United Russia | Regional assembly, Tomsk Oblast, 2011 04.12.2011 · Tomsk Oblast |
| Kostarev Nikolay Aleksandrovich b. 24.09.1953 · Registered · Yabloko | State Duma, 2007 02.12.2007 · Russian Federation |
| Kostarev Nikolay Aleksandrovich b. 24.09.1953 · Registered · Yabloko | Regional assembly, Tomsk Oblast, 2007 11.03.2007 · Tomsk Oblast |
| Kostarev Nikolay Aleksandrovich b. 24.09.1953 · Registered · Yabloko | Regional assembly, Tomsk Oblast, 2007 11.03.2007 · Tomsk Oblast |
| Kostarev Sergey Vladimirovich b. 24.06.1961 · Registered · Yabloko | State Duma, 2011 04.12.2011 · Russian Federation |
| Kostarev Sergey Vladimirovich b. 24.06.1961 · Registered · Yabloko | State Duma, 2007 02.12.2007 · Russian Federation |
| Kostarev Sergey Vladimirovich b. 24.06.1961 · Registered · Yabloko | State Duma, 2016 18.09.2016 · Russian Federation |
| Kostarev Sergey Vladimirovich b. 24.06.1961 · Registered · Yabloko | Regional assembly, Omsk Oblast, 2011 04.12.2011 · Omsk Oblast |
| Kosteva Lyudmila Yurevna b. 27.07.1952 · Registered · "YARO PP "Agrarnaya partiya Rossii" | Regional assembly, Yaroslavl Oblast, 2008 02.03.2008 · Yaroslavl Oblast |
| Kosteva Lyudmila Yurevna b. 27.07.1952 · Registered · Self-nomination | Regional assembly, Yaroslavl Oblast, 2000 26.03.2000 · Yaroslavl Oblast |
| Kostenko Aleksandr Ivanovich b. 17.02.1981 · Registered · LDPR | Regional assembly, Sakhalin Oblast, 2004 10.10.2004 · Sakhalin Oblast |
| Kostenko Aleksandr Ivanovich b. 24.10.1958 · Registered · United Russia | State Duma, 2011 04.12.2011 · Russian Federation |
| Kostenko Anton Igorevich b. 1979 · Registered · CPRF | Regional assembly, Chelyabinsk Oblast, 2025 14.09.2025 · Chelyabinsk Oblast |
| Kostenko Anton Igorevich b. 1979 · Registered · CPRF | Regional assembly, Chelyabinsk Oblast, 2025 14.09.2025 · Chelyabinsk Oblast |
| Kostenko Valeriy Nikolaevich b. 05.11.1970 · Registered · Voters’ group | Regional assembly, Republic of Adygea, 2001 04.03.2001 · Republic of Adygea |
| Kostenko Viktoriya Vladimirovna b. 1991 · Registered · Party of Pensioners | Regional assembly, Kaluga Oblast, 2025 14.09.2025 · Kaluga Oblast |
| Kostenko Natalya Ivanovna b. 05.10.1972 · Registered · CPRF | Regional assembly, Kurgan Oblast, 2010 14.03.2010 · Kurgan Oblast |
| Kostenko Natalya Ivanovna b. 05.10.1972 · Registered · CPRF | Repeat · Regional assembly, Kurgan Oblast, 2008 02.03.2008 · Kurgan Oblast |
| Kostenko Natalya Ivanovna b. 05.10.1972 · Registered · CPRF | State Duma, 2011 04.12.2011 · Russian Federation |
| Kostenko Natalya Ivanovna b. 05.10.1972 · Registered · CPRF | State Duma, 2007 02.12.2007 · Russian Federation |
| Kostenko Natalya Ivanovna b. 05.10.1972 · Registered · CPRF | Repeat · Regional assembly, Kurgan Oblast, 2007 11.03.2007 · Kurgan Oblast |
| Kostenko Olga Petrovna b. 03.09.1960 · Registered · Voters’ group | Regional assembly, Tver Oblast, 2005 18.12.2005 · Tver Oblast |
| Kostenko Sergey Ivanovich b. 23.03.1963 · Registered · LDPR | Regional assembly, Primorsky Krai, 2011 04.12.2011 · Primorsky Krai |
| Kostenko Yuriy Vasilevich b. 17.09.1954 · Registered · Self-nomination | Regional assembly, Rostov Oblast, 2003 30.03.2003 · Rostov Oblast |
| Kostenyuk Aleksandr Grigorevich b. 18.12.1935 · Registered · Voters’ group | Regional assembly, Orenburg Oblast, 2006 12.03.2006 · Orenburg Oblast |
| Kostenyuk Aleksandr Grigorevich b. 18.12.1935 · Registered · Voters’ group | Regional assembly, Orenburg Oblast, 2006 12.03.2006 · Orenburg Oblast |
| Kosterev Anatoliy Evgenevich b. 16.02.1957 · Registered · United Russia | Regional assembly, Saint Petersburg, 2011 04.12.2011 · Saint Petersburg |
| Kosterin Aleksandr Petrovich b. 30.09.1967 · Registered · Self-nomination | Regional assembly, Rostov Oblast, 2003 30.03.2003 · Rostov Oblast |
| Kosterin Valeriy Dmitrievich b. 09.10.1950 · Registered · Voters’ group | Regional assembly, Altai Republic, 2006 12.03.2006 · Altai Republic |
| Kosterin Valeriy Dmitrievich b. 09.10.1950 · Registered · "Altayskoe respublikanskoe otdelenie "Kommunisticheskoy partii Rossiyskoy Federatsii" | Regional assembly, Altai Republic, 2010 14.03.2010 · Altai Republic |
| Kosterin Mikhail Aleksandrovich b. 13.10.1950 · Registered · CPRF | Regional assembly, Kirov Oblast, 2011 13.03.2011 · Kirov Oblast |
| Kosterin Sergey Anatolevich b. 02.04.1973 · Registered · A Just Russia | Regional assembly, Tambov Oblast, 2011 13.03.2011 · Tambov Oblast |
| Kostetskaya Ilona Igorevna b. 1987 · Registered · New People | Regional assembly, Omsk Oblast, 2026 20.09.2026 · Omsk Oblast |
| Kostikina Elena Vladimirovna b. 1979 · Registered · LDPR | Regional assembly, Ryazan Oblast, 2025 14.09.2025 · Ryazan Oblast |
| Kostikina Elena Vladimirovna b. 1979 · Registered · LDPR | Regional assembly, Ryazan Oblast, 2025 14.09.2025 · Ryazan Oblast |
| Kostikov Aleksandr Ilich b. 11.11.1955 · Registered · Voters’ group | Regional assembly, Tula Oblast, 2004 03.10.2004 · Tula Oblast |
| Kostikov Oleg Vyacheslavovich b. 04.09.1970 · Registered · United Russia | Regional assembly, Chelyabinsk Oblast, 2010 10.10.2010 · Chelyabinsk Oblast |
| Kostikova Elena Vitalevna b. 10.03.1971 · Registered · Self-nomination | Regional assembly, Oryol Oblast, 2007 11.03.2007 · Oryol Oblast |
| Kostikova Elena Georgievna b. 1983 · Registered · LDPR | Regional assembly, Republic of Adygea, 2026 20.09.2026 · Republic of Adygea |
| Kostin Aleksandr Ivanovich b. 23.06.1955 · Registered · Voters’ group | Regional assembly, Kursk Oblast, 2006 12.03.2006 · Kursk Oblast |
| Kostin Aleksandr Ivanovich b. 23.06.1955 · Registered · Voters’ group | Regional assembly, Kursk Oblast, 2006 12.03.2006 · Kursk Oblast |
| Kostin Aleksey Vladimirovich b. 24.04.1975 · Registered · CPRF | Regional assembly, Penza Oblast, 2012 14.10.2012 · Penza Oblast |
| Kostin Valeriy Ivanovich b. 08.12.1950 · Registered · A Just Russia | Regional assembly, Kaliningrad Oblast, 2011 13.03.2011 · Kaliningrad Oblast |
| Kostin Valeriy Ivanovich b. 08.12.1950 · Registered · Rodina | Regional assembly, Kaliningrad Oblast, 2006 12.03.2006 · Kaliningrad Oblast |
