| Kostin Vitaliy Pavlovich b. 27.10.1947 · Registered · United Russia | Regional assembly, Novgorod Oblast, 2006 08.10.2006 · Novgorod Oblast |
| Kostin Vladimir Aleksandrovich b. 25.08.1984 · Registered · LDPR | State Duma, 2021 19.09.2021 · Russian Federation |
| Kostin Vladimir Aleksandrovich b. 25.08.1984 · Registered · LDPR | State Duma, 2016 18.09.2016 · Russian Federation |
| Kostin Vladimir Aleksandrovich b. 25.08.1984 · Registered · United Russia | Regional assembly, Kirov Oblast, 2011 13.03.2011 · Kirov Oblast |
| Kostin Vladimir Vladimirovich b. 10.01.1968 · Registered · LDPR | Regional assembly, Moscow Oblast, 2011 04.12.2011 · Moscow Oblast |
| Kostin Vladimir Vladimirovich b. 10.01.1968 · Registered · LDPR | Regional assembly, Moscow Oblast, 2011 04.12.2011 · Moscow Oblast |
| Kostin Konstantin Anatolevich b. 06.07.1973 · Registered · Self-nomination | Regional assembly, Kemerovo Oblast – Kuzbass, 2003 20.04.2003 · Kemerovo Oblast – Kuzbass |
| Kostin Konstantin Olegovich b. 1990 · Registered · New People | Regional assembly, Pskov Oblast, 2026 20.09.2026 · Pskov Oblast |
| Kostin Mikhail Ivanovich b. 29.11.1953 · Registered · LDPR | Regional assembly, Pskov Oblast, 2007 11.03.2007 · Pskov Oblast |
| Kostin Rafik Aysaevich b. 31.05.1959 · Registered · Voters’ group | Regional assembly, Astrakhan Oblast, 2001 28.10.2001 · Astrakhan Oblast |
| Kostina Aksana Vladimirovna b. 09.10.1953 · Registered · CPRF | Regional assembly, Kurgan Oblast, 2010 14.03.2010 · Kurgan Oblast |
| Kostina Valentina Dmitrievna b. 29.03.1958 · Registered · United Russia | Regional assembly, Saint Petersburg, 2011 04.12.2011 · Saint Petersburg |
| Kostina Valentina Dmitrievna b. 29.03.1958 · Registered · Voters’ group | Regional assembly, Saint Petersburg, 2002 08.12.2002 · Saint Petersburg |
| Kostina Marina Vasilevna b. 08.01.1969 · Registered · CPRF | State Duma, 2011 04.12.2011 · Russian Federation |
| Kostina Marina Vasilevna b. 1969 · Registered · CPRF | Regional assembly, Kaluga Oblast, 2025 14.09.2025 · Kaluga Oblast |
| Kostina Marina Vasilevna b. 1969 · Registered · CPRF | Regional assembly, Kaluga Oblast, 2025 14.09.2025 · Kaluga Oblast |
| Kostina Marina Vasilevna b. 08.01.1969 · Registered · CPRF | State Duma, 2016 18.09.2016 · Russian Federation |
| Kostina Marina Vasilevna b. 08.01.1969 · Registered · CPRF | State Duma, 2007 02.12.2007 · Russian Federation |
| Kostina Marina Vasilevna b. 08.01.1969 · Registered · CPRF | Regional assembly, Kaluga Oblast, 2004 14.11.2004 · Kaluga Oblast |
| Kostina Nataliya Lvovna b. 03.06.1953 · Registered · Politicheskaya partiya «Partiya sotsialnoy spravedlivosti» | State Duma, 2007 02.12.2007 · Russian Federation |
| Kostina Nina Alekseevna b. 25.12.1936 · Registered · CPRF | Regional assembly, Republic of Mordovia, 2007 02.12.2007 · Republic of Mordovia |
| Kostina Olga Alekseevna b. 05.09.1949 · Registered · Party of Pensioners | Regional assembly, Kurgan Oblast, 2004 28.11.2004 · Kurgan Oblast |
| Kostina Olga Viktorovna b. 19.09.1962 · Registered · LDPR | Regional assembly, Kaliningrad Oblast, 2006 12.03.2006 · Kaliningrad Oblast |
| Kostina Olga Viktorovna b. 19.09.1962 · Registered · LDPR | Regional assembly, Kaliningrad Oblast, 2011 13.03.2011 · Kaliningrad Oblast |
| Kostina Olga Viktorovna b. 19.09.1962 · Registered · LDPR | Regional assembly, Kaliningrad Oblast, 2006 12.03.2006 · Kaliningrad Oblast |
| Kostina Olga Viktorovna b. 19.09.1962 · Registered · LDPR | Regional assembly, Kaliningrad Oblast, 2011 13.03.2011 · Kaliningrad Oblast |
| Kostina Snezhana Vladimirovna b. 04.02.1978 · Registered · A Just Russia | Regional assembly, Samara Oblast, 2011 04.12.2011 · Samara Oblast |
| Kostina Emiliya Vasilevna b. 05.09.1937 · Registered · A Just Russia | Regional assembly, Kirov Oblast, 2011 13.03.2011 · Kirov Oblast |
| Kostitsin Aleksey Vladimirovich b. 09.06.1976 · Registered · CPRF | Regional assembly, Perm Krai, 2011 04.12.2011 · Perm Krai |
| Kostitsin Aleksey Vladimirovich b. 09.06.1976 · Registered · CPRF | State Duma, 2021 19.09.2021 · Russian Federation |
| Kostitsina Gulnara Nurgalievna b. 31.01.1977 · Registered · CPRF | Regional assembly, Perm Krai, 2011 04.12.2011 · Perm Krai |
| Kostitsina Gulnara Nurgalievna b. 31.01.1977 · Registered · CPRF | Regional assembly, Perm Krai, 2011 04.12.2011 · Perm Krai |
| Kostitsyn Evgeniy Aleksandrovich b. 31.03.1986 · Registered · Patriots of Russia | State Duma, 2007 02.12.2007 · Russian Federation |
| Kostitsyn Evgeniy Germanovich b. 08.01.1949 · Registered · Politicheskaya partiya «Demokraticheskaya partiya Rossii» | State Duma, 2007 02.12.2007 · Russian Federation |
| Kostogryz Viktoriya Igorevna b. 17.02.1981 · Registered · Right Cause | Regional assembly, Moscow Oblast, 2011 04.12.2011 · Moscow Oblast |
| Kostogryz Igor Viktorovich b. 1965 · Registered · CPRF | Regional assembly, Khanty-Mansi Autonomous Okrug – Yugra, 2026 20.09.2026 · Khanty-Mansi Autonomous Okrug |
| Kostoev Aliskhan Akhmetovich b. 1995 · Registered · LDPR | Regional assembly, Republic of Ingushetia, 2026 20.09.2026 · Republic of Ingushetia |
| Kostoev Aslan Khusenovich b. 1990 · Registered · United Russia | Regional assembly, Republic of Ingushetia, 2026 20.09.2026 · Republic of Ingushetia |
| Kostoev Askhab Arsamakovich b. 29.05.1988 · Registered · United Russia | Regional assembly, Republic of Ingushetia, 2011 04.12.2011 · Republic of Ingushetia |
| Kostoev Bagaudin Akhmetovich b. 14.08.1968 · Registered · Voters’ group | Regional assembly, Republic of Ingushetia, 2003 07.12.2003 · Republic of Ingushetia |
| Kostoev Bagaudin Akhmetovich b. 14.08.1968 · Registered · Civic Force | State Duma, 2007 02.12.2007 · Russian Federation |
| Kostoev Beslan Usmanovich b. 28.08.1938 · Registered · Self-nomination | Regional assembly, Republic of Ingushetia, 2003 07.12.2003 · Republic of Ingushetia |
| Kostoev Umar Batyrovich b. 1984 · Registered · LDPR | Regional assembly, Republic of Ingushetia, 2026 20.09.2026 · Republic of Ingushetia |
| Kostoev Khadzhimurat Abukarovich b. 10.02.1947 · Registered · Self-nomination | Regional assembly, Republic of Ingushetia, 2003 07.12.2003 · Republic of Ingushetia |
| Kostoev Yakhya Akhmetovich b. 04.09.1959 · Registered · Yabloko | State Duma, 2011 04.12.2011 · Russian Federation |
| Kostoeva Zarema Khusenovna b. 1973 · Registered · New People | Regional assembly, Republic of Ingushetia, 2026 20.09.2026 · Republic of Ingushetia |
| Kostoeva Madina Khusenovna b. 1982 · Registered · New People | Regional assembly, Republic of Ingushetia, 2026 20.09.2026 · Republic of Ingushetia |
| Kostoeva Fatima Khasanovna b. 1987 · Registered · LDPR | Regional assembly, Republic of Ingushetia, 2026 20.09.2026 · Republic of Ingushetia |
| Kostoeva Khava Suleymanovna b. 2000 · Registered · LDPR | Regional assembly, Republic of Ingushetia, 2026 20.09.2026 · Republic of Ingushetia |
| Kostokova Regina Ruslanovna b. 24.09.1983 · Registered · CPRF | Regional assembly, Republic of Adygea, 2006 12.03.2006 · Republic of Adygea |
