| Kosenok Anatoliy Fedorovich year of birth not listed · United Russia | Regional assembly, Bryansk Oblast, 2004 05.12.2004 · Bryansk Oblast |
| Kosenok Sergey Mikhaylovich b. 09.09.1959 · Nominated · United Russia | Regional assembly, Khanty-Mansi Autonomous Okrug, 2016 18.09.2016 · Khanty-Mansi Autonomous Okrug |
| Kosenchuk Yuliya Gennadevna b. 01.02.1984 · Nominated · A Just Russia | Regional assembly, Omsk Oblast, 2021 19.09.2021 · Omsk Oblast |
| Kosenchuk Yuliya Gennadevna b. 01.02.1984 · Nominated · A Just Russia | Regional assembly, Omsk Oblast, 2021 19.09.2021 · Omsk Oblast |
| Kosikov Evgeniy Mikhaylovich b. 26.07.1982 · Nominated · CPRF | Regional assembly, Stavropol Krai, 2016 18.09.2016 · Stavropol Krai |
| Kosilov Ivan Aleksandrovich b. 25.10.1991 · Nominated · CPRF | Regional assembly, Lipetsk Oblast, 2021 19.09.2021 · Lipetsk Oblast |
| Kosilov Ivan Aleksandrovich b. 25.10.1991 · Nominated · CPRF | Regional assembly, Lipetsk Oblast, 2021 19.09.2021 · Lipetsk Oblast |
| Kosilov Sergey Mikhaylovich b. 05.11.1969 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2018 09.09.2018 · Rostov Oblast |
| Kosilov Sergey Mikhaylovich b. 05.11.1969 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2013 08.09.2013 · Rostov Oblast |
| Kosilov Sergey Mikhaylovich b. 05.11.1969 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2018 09.09.2018 · Rostov Oblast |
| Kosinkov Evgeniy Vladimirovich b. 11.03.1972 · Nominated · A Just Russia | Regional assembly, Tomsk Oblast, 2016 18.09.2016 · Tomsk Oblast |
| Kosinov Vasiliy Georgievich year of birth not listed · LDPR | Regional assembly, Bryansk Oblast, 2004 05.12.2004 · Bryansk Oblast |
| Kosinov Sergey Aleksandrovich b. 29.10.1960 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2013 08.09.2013 · Rostov Oblast |
| Kosinov Sergey Aleksandrovich b. 29.10.1960 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2018 09.09.2018 · Rostov Oblast |
| Kosinov Sergey Aleksandrovich b. 29.10.1960 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2013 08.09.2013 · Rostov Oblast |
| Kosinov Sergey Aleksandrovich b. 29.10.1960 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2023 10.09.2023 · Rostov Oblast |
| Kosinov Sergey Aleksandrovich b. 29.10.1960 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2018 09.09.2018 · Rostov Oblast |
| Kosinov Sergey Aleksandrovich b. 29.10.1960 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2023 10.09.2023 · Rostov Oblast |
| Kosinov Sergey Aleksandrovich b. 1960 · Registered · A Just Russia | Governor, Rostov Oblast, 2025 14.09.2025 · Rostov Oblast |
| Kosinov Sergey Ivanovich b. 16.06.1956 · Nominated · Rodina | Regional assembly, Voronezh Oblast, 2015 13.09.2015 · Voronezh Oblast |
| Kosinov Sergey Ivanovich b. 16.06.1956 · Nominated · Rodina | Regional assembly, Kostroma Oblast, 2015 13.09.2015 · Kostroma Oblast |
| Kosinov Sergey Sergeevich b. 29.10.1981 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2013 08.09.2013 · Rostov Oblast |
| Kosinova Irina Nikolaevna b. 11.09.1981 · Nominated · Patriots of Russia | Regional assembly, Belgorod Oblast, 2020 13.09.2020 · Belgorod Oblast |
| Kosinova Tatyana Nikolaevna b. 1978 · Nominated · United Russia | Regional assembly, Altai Krai, 2026 20.09.2026 · Altai Krai |
| Kosinskaya Svetlana Andreevna b. 25.06.1945 · Nominated · A Just Russia | Regional assembly, Tula Oblast, 2014 14.09.2014 · Tula Oblast |
| Kosinskiy Vladimir Stanislavovich b. 23.08.1980 · Nominated · CPRF | Regional assembly, Chukotka Autonomous Okrug, 2021 19.09.2021 · Chukotka Autonomous Okrug |
| Kosintsev Aleksandr Petrovich b. 1957 · Nominated · United Russia | Regional assembly, Sverdlovsk Oblast, 2026 20.09.2026 · Sverdlovsk Oblast |
| Kosintseva Elena Algirdasovna b. 24.06.1970 · Registered · Party of Pensioners | Regional assembly, Kurgan Oblast, 2004 28.11.2004 · Kurgan Oblast |
| Kositchenkov Andrey Aleksandrovich b. 20.11.1977 · Nominated · United Russia | Regional assembly, Sevastopol, 2024 08.09.2024 · Sevastopol |
| Kosikhina Nataliya Vladimirovna b. 07.08.1972 · Nominated · United Russia | Regional assembly, Yaroslavl Oblast, 2018 09.09.2018 · Yaroslavl Oblast |
| Kosikhina Nataliya Vladimirovna b. 07.08.1972 · Nominated · United Russia | Regional assembly, Yaroslavl Oblast, 2023 10.09.2023 · Yaroslavl Oblast |
| Kosikhina Nataliya Vladimirovna b. 07.08.1972 · Nominated · United Russia | Regional assembly, Yaroslavl Oblast, 2023 10.09.2023 · Yaroslavl Oblast |
| Kositsin Anatoliy Ivanovich b. 14.06.1938 · Registered · CPRF | Regional assembly, Astrakhan Oblast, 2006 08.10.2006 · Astrakhan Oblast |
| Kositsin Anatoliy Ivanovich b. 14.06.1938 · Registered · CPRF | Regional assembly, Astrakhan Oblast, 2006 08.10.2006 · Astrakhan Oblast |
| Kositsyn Dmitriy Andreevich b. 13.05.1982 · Nominated · LDPR | Regional assembly, Voronezh Oblast, 2020 13.09.2020 · Voronezh Oblast |
| Kositsyn Evgeniy Yurevich b. 18.07.1989 · Nominated · United Russia | Regional assembly, Amur Oblast, 2021 19.09.2021 · Amur Oblast |
| Kositsyna Irina Vladimirovna b. 20.01.1989 · Nominated · LDPR | Regional assembly, Voronezh Oblast, 2015 13.09.2015 · Voronezh Oblast |
| Kositsyna Irina Vladimirovna b. 20.01.1989 · Nominated · LDPR | Regional assembly, Voronezh Oblast, 2020 13.09.2020 · Voronezh Oblast |
| Koskin Viktor Yurevich b. 11.06.1957 · Nominated · Yabloko | Regional assembly, Komi Republic, 2015 13.09.2015 · Komi Republic |
| Koskin Evgeniy Nikolaevich b. 07.05.1987 · Nominated · LDPR | Regional assembly, Mari El Republic, 2024 08.09.2024 · Mari El Republic |
| Koskin Evgeniy Nikolaevich b. 07.05.1987 · Nominated · LDPR | Regional assembly, Mari El Republic, 2024 08.09.2024 · Mari El Republic |
| Koskov Aleksandr Leonidovich b. 23.09.1964 · Registered · LDPR | Regional assembly, Perm Krai, 2006 03.12.2006 · Perm Krai |
| Koskov Oleg Alekseevich b. 1972 · Registered · The Greens | Regional assembly, Ryazan Oblast, 2025 14.09.2025 · Ryazan Oblast |
| Koskova Svetlana Anatolevna b. 1974 · Nominated · A Just Russia | Regional assembly, Stavropol Krai, 2026 20.09.2026 · Stavropol Krai |
| Koskova Svetlana Anatolevna b. 1974 · Nominated · A Just Russia | Regional assembly, Stavropol Krai, 2026 20.09.2026 · Stavropol Krai |
| Koslavskiy Dmitriy Aleksandrovich b. 17.10.1986 · Nominated · CPRF | Regional assembly, Tver Oblast, 2021 19.09.2021 · Tver Oblast |
| Kosmakova Natalya Filippovna b. 15.04.1968 · Nominated · A Just Russia | Regional assembly, Karachay-Cherkess Republic, 2019 08.09.2019 · Karachay-Cherkess Republic |
| Kosmachev Anatoliy Mikhaylovich b. 24.12.1973 · Nominated · Party of Pensioners | Regional assembly, Republic of Khakassia, 2013 08.09.2013 · Republic of Khakassia |
| Kosmachev Viktor Nikolaevich b. 1968 · Nominated · LDPR | Regional assembly, Orenburg Oblast, 2026 20.09.2026 · Orenburg Oblast |
| Kosmachev Viktor Nikolaevich b. 1968 · Nominated · LDPR | Regional assembly, Orenburg Oblast, 2026 20.09.2026 · Orenburg Oblast |
