| Kostokhina Ekaterina Vladimirovna b. 25.06.1982 · Nominated · Self-nomination | Regional assembly, Republic of Khakassia, 2013 08.09.2013 · Republic of Khakassia |
| Kostrov Aleksandr Nikolaevich year of birth not listed · Self-nomination | Regional assembly, Ryazan Oblast, 2001 23.09.2001 · Ryazan Oblast |
| Kostrov Aleksandr Nikolaevich year of birth not listed · Self-nomination | Regional assembly, Ryazan Oblast, 2001 25.03.2001 · Ryazan Oblast |
| Kostrov Anatoliy Gennadevich year of birth not listed · Self-nomination | Regional assembly, Kirov Oblast, 2001 25.03.2001 · Kirov Oblast |
| Kostromin Aleksey Viktorovich b. 27.06.1979 · Registered · Self-nomination | Regional assembly, Novosibirsk Oblast, 2005 11.12.2005 · Novosibirsk Oblast |
| Kostromin Boris Aleksandrovich b. 1992 · Nominated · Self-nomination | State Duma, 2026 20.09.2026 · Russian Federation |
| Kostromin Valeriy Anatolevich b. 01.07.1964 · Registered · Self-nomination | Regional assembly, Novosibirsk Oblast, 2001 02.12.2001 · Novosibirsk Oblast |
| Kostromin Valeriy Anatolevich b. 01.07.1964 · утративший статус выдв. кандидата · Self-nomination | Regional assembly, Novosibirsk Oblast, 2005 11.12.2005 · Novosibirsk Oblast |
| Kostromin Evgeniy Mikhaylovich year of birth not listed · Self-nomination | Regional assembly, Tyumen Oblast, 2001 16.12.2001 · Tyumen Oblast |
| Kostromin Sergey Vladimirovich b. 18.04.1963 · Registered · Self-nomination | Regional assembly, Chelyabinsk Oblast, 2015 13.09.2015 · Chelyabinsk Oblast |
| Kostromin Sergey Vladimirovich b. 18.04.1963 · Registered · Self-nomination | Regional assembly, Chelyabinsk Oblast, 2000 24.12.2000 · Chelyabinsk Oblast |
| Kostylev Gleb Vladimirovich year of birth not listed · Self-nomination | Regional assembly, Leningrad Oblast, 2001 16.12.2001 · Leningrad Oblast |
| Kostylev Lev Nikolaevich b. 23.08.1951 · Registered · Self-nomination | Regional assembly, Krasnodar Krai, 2003 07.12.2003 · Krasnodar Krai |
| Kostylev Yuriy Georgievich b. 12.08.1954 · Registered · Self-nomination | Regional assembly, Tyumen Oblast, 2007 11.03.2007 · Tyumen Oblast |
| Kostyshak Lyudmila Vasilevna b. 07.01.1946 · Nominated · Self-nomination | Regional assembly, Kaliningrad Oblast, 2016 18.09.2016 · Kaliningrad Oblast |
| Kostyshev Mikhail Viktorovich year of birth not listed · Self-nomination | Regional assembly, Kaluga Oblast, 2000 12.11.2000 · Kaluga Oblast |
| Kostyshev Mikhail Viktorovich b. 24.11.1955 · утративший статус выдв. кандидата · Self-nomination | Regional assembly, Kaluga Oblast, 2004 14.11.2004 · Kaluga Oblast |
| Kostyuk Vasiliy Ivanovich year of birth not listed · Self-nomination | Regional assembly, Leningrad Oblast, 2001 16.12.2001 · Leningrad Oblast |
| Kostyuk Vladimir Andreevich year of birth not listed · Self-nomination | State Duma, 2003 07.12.2003 · Russian Federation |
| Kostyuk Marina Sergeevna b. 21.11.1982 · Nominated · Self-nomination | Regional assembly, Lipetsk Oblast, 2021 19.09.2021 · Lipetsk Oblast |
| Kostyukov Aleksandr Nikolaevich b. 20.09.1958 · Registered · Self-nomination | Regional assembly, Omsk Oblast, 2007 11.03.2007 · Omsk Oblast |
| Kostyukov Vladimir Alekseevich year of birth not listed · Self-nomination | Regional assembly, Kaluga Oblast, 2000 12.11.2000 · Kaluga Oblast |
| Kostyukova Raisa Aleksandrovna year of birth not listed · Self-nomination | Regional assembly, Oryol Oblast, 2002 24.03.2002 · Oryol Oblast |
| Kostyunin Sergey Vladimirovich b. 23.10.1982 · Registered · Self-nomination | Regional assembly, Leningrad Oblast, 2007 11.03.2007 · Leningrad Oblast |
| Kostyukhin Aleksandr Alekseevich b. 10.10.1958 · Elected deputy · Self-nomination | Regional assembly, Novgorod Oblast, 2001 21.10.2001 · Novgorod Oblast |
| Kostyuchenko Vladimir Evgenevich year of birth not listed · Self-nomination | Regional assembly, Moscow, 2001 16.12.2001 · Moscow |
| Kosumova Khedi Gazalievna b. 22.03.1966 · Registered · Self-nomination | Regional assembly, Chechen Republic, 2005 27.11.2005 · Chechen Republic |
| Kosukhin Viktor Fedorovich year of birth not listed · Self-nomination | Regional assembly, Leningrad Oblast, 2001 16.12.2001 · Leningrad Oblast |
| Kosygin Andrey Borisovich year of birth not listed · Self-nomination | Regional assembly, Moscow Oblast, 2001 16.12.2001 · Moscow Oblast |
| Kosygin Sergey Andreevich b. 31.05.1973 · Nominated · Self-nomination | Regional assembly, Republic of Buryatia, 2013 08.09.2013 · Republic of Buryatia |
| Kosyrev Aleksandr Aleksandrovich year of birth not listed · Self-nomination | Regional assembly, Voronezh Oblast, 2001 25.03.2001 · Voronezh Oblast |
| Kosyrev Aleksandr Aleksandrovich year of birth not listed · Self-nomination | Regional assembly, Voronezh Oblast, 2001 16.09.2001 · Voronezh Oblast |
| Kosykh Vyacheslav Fedorovich year of birth not listed · Self-nomination | Regional assembly, Smolensk Oblast, 2002 19.05.2002 · Smolensk Oblast |
| Kosykh Dmitriy Dmitrievich b. 14.01.1954 · Nominated · Self-nomination | Regional assembly, Kaluga Oblast, 2015 13.09.2015 · Kaluga Oblast |
| Kosykh Sergey Mikhaylovich year of birth not listed · Self-nomination | Regional assembly, Tuva Republic, 2002 02.06.2002 · Tuva Republic |
| Kosykh Sergey Mikhaylovich year of birth not listed · Self-nomination | Regional assembly, Tuva Republic, 2002 02.06.2002 · Tuva Republic |
| Kosyuk Nikolay Savelevich year of birth not listed · Self-nomination | Regional assembly, Kurgan Oblast, 2000 26.11.2000 · Kurgan Oblast |
| Kosyakova Tatyana Ivanovna b. 03.05.1949 · Registered · Self-nomination | Regional assembly, Murmansk Oblast, 2001 09.12.2001 · Murmansk Oblast |
| Kosyan Seyran Khachikovich b. 23.12.1963 · Nominated · Self-nomination | Regional assembly, Rostov Oblast, 2013 08.09.2013 · Rostov Oblast |
| Kotelnikov Aleksandor Anatolevich year of birth not listed · Self-nomination | Regional assembly, Lipetsk Oblast, 2002 14.04.2002 · Lipetsk Oblast |
| Kotelnikov Viktor Denisovich b. 28.09.1940 · Registered · Self-nomination | By-election · Regional assembly, Krasnoyarsk Krai, 2004 14.03.2004 · Krasnoyarsk Krai |
| Kotelnikov Vladimir Aleksandrovich year of birth not listed · Self-nomination | Regional assembly, Bryansk Oblast, 2004 05.12.2004 · Bryansk Oblast |
| Kotelnikov Ivan Ivanovich b. 14.04.1947 · Registered · Self-nomination | Regional assembly, Sakha Republic (Yakutia), 2002 29.12.2002 · Sakha Republic (Yakutia) |
| Kotelnikov Mikhail Gurevich year of birth not listed · Self-nomination | Regional assembly, Chelyabinsk Oblast, 2000 24.12.2000 · Chelyabinsk Oblast |
| Kotelnikov Nikolay Stefanovich b. 30.01.1955 · Elected deputy · Self-nomination | Regional assembly, Voronezh Oblast, 2005 20.03.2005 · Voronezh Oblast |
| Kotelnikov Nikolay Stefanovich year of birth not listed · Self-nomination | Regional assembly, Voronezh Oblast, 2001 25.03.2001 · Voronezh Oblast |
| Kotenev Aleksandr Anatolevich year of birth not listed · Self-nomination | Regional assembly, Smolensk Oblast, 2002 19.05.2002 · Smolensk Oblast |
| Kotenev Valeriy Nikolaevich b. 05.09.1953 · Elected deputy · Self-nomination | Regional assembly, Sakha Republic (Yakutia), 2002 29.12.2002 · Sakha Republic (Yakutia) |
| Kotenko Bogdan Valentinovich b. 18.06.1974 · кандидат с отказом в регистрации · Self-nomination | Regional assembly, Tyumen Oblast, 2007 11.03.2007 · Tyumen Oblast |
| Kotenko Vladimir Ivanovich b. 23.08.1945 · Withdrawn · Self-nomination | Regional assembly, Primorsky Krai, 2002 09.06.2002 · Primorsky Krai |
