| Kastuev Boris Kambolatovich b. 17.03.1959 · Nominated · Yabloko | Regional assembly, Republic of North Ossetia–Alania, 2017 10.09.2017 · Republic of North Ossetia–Alania |
| Kastyrin Roman Nikolaevich b. 26.06.1973 · Nominated · Rodina | Regional assembly, Voronezh Oblast, 2020 13.09.2020 · Voronezh Oblast |
| Kastyukevich Igor Yurevich b. 06.12.1976 · Nominated · United Russia | Regional assembly, Kherson Oblast, 2023 10.09.2023 · Kherson Oblast |
| Kasumov Alvi Khamidovich b. 13.08.1995 · Nominated · A Just Russia | Early · Regional assembly, Chechen Republic, 2016 18.09.2016 · Chechen Republic |
| Kasumov Idris Sabir-Ogly b. 23.06.1966 · Registered · Party of Pensioners | Regional assembly, Republic of Adygea, 2006 12.03.2006 · Republic of Adygea |
| Kasumov Magomed Abdulaevich b. 16.06.1995 · Nominated · A Just Russia | Regional assembly, Republic of Dagestan, 2016 18.09.2016 · Republic of Dagestan |
| Kasumov Magomed Abdulaevich b. 16.06.1995 · Nominated · A Just Russia | Regional assembly, Republic of Dagestan, 2021 19.09.2021 · Republic of Dagestan |
| Kasumov Sabir Magamedovich b. 10.09.1963 · Nominated · Party of Pensioners | Regional assembly, Yaroslavl Oblast, 2013 08.09.2013 · Yaroslavl Oblast |
| Kasumov Sabir Magamedovich b. 10.09.1963 · Nominated · Party of Pensioners | Regional assembly, Yaroslavl Oblast, 2013 08.09.2013 · Yaroslavl Oblast |
| Kasumov Tadzhiddin Islam Ogly year of birth not listed · Patriots of Russia | State Duma, 2003 07.12.2003 · Russian Federation |
| Kasumov Tadzhidin Islamovich b. 05.05.194 · Nominated · A Just Russia | Regional assembly, Mari El Republic, 2014 14.09.2014 · Mari El Republic |
| Kasumova Tatyana Grantovna b. 17.12.1966 · Registered · Party of Pensioners | Regional assembly, Republic of Adygea, 2006 12.03.2006 · Republic of Adygea |
| Kasymov Ildus Asgatovich b. 29.07.1955 · Nominated · United Russia | Regional assembly, Republic of Tatarstan, 2014 14.09.2014 · Republic of Tatarstan |
| Kaskov Vadim Gennadevich b. 19.05.1968 · Nominated · Rodina | Regional assembly, Kursk Oblast, 2016 18.09.2016 · Kursk Oblast |
| Kaskov Valentin Olegovich b. 03.03.1988 · Nominated · Party for Justice | Regional assembly, Rostov Oblast, 2013 08.09.2013 · Rostov Oblast |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Yamalo-Nenets Autonomous Okrug, 2020 13.09.2020 · Yamalo-Nenets Autonomous Okrug |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Zabaykalsky Krai, 2018 09.09.2018 · Zabaykalsky Krai |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Sakhalin Oblast, 2017 10.09.2017 · Sakhalin Oblast |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Moscow, 2019 08.09.2019 · Moscow |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Arkhangelsk Oblast, 2018 09.09.2018 · Arkhangelsk Oblast |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Kaluga Oblast, 2020 13.09.2020 · Kaluga Oblast |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Irkutsk Oblast, 2018 09.09.2018 · Irkutsk Oblast |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Khabarovsk Krai, 2019 08.09.2019 · Khabarovsk Krai |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Komi Republic, 2020 13.09.2020 · Komi Republic |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Chelyabinsk Oblast, 2020 13.09.2020 · Chelyabinsk Oblast |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Sakha Republic (Yakutia), 2018 09.09.2018 · Sakha Republic (Yakutia) |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Omsk Oblast, 2016 18.09.2016 · Omsk Oblast |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Udmurt Republic, 2017 10.09.2017 · Udmurt Republic |
| Kasmin Dmitriy Romanovich b. 21.01.1985 · Nominated · Rodina | Regional assembly, Stavropol Krai, 2016 18.09.2016 · Stavropol Krai |
| Kasmin Konstantin Yurevich b. 05.10.1977 · Nominated · LDPR | Regional assembly, Rostov Oblast, 2018 09.09.2018 · Rostov Oblast |
| Kasmin Konstantin Yurevich b. 05.10.1977 · Nominated · LDPR | Regional assembly, Rostov Oblast, 2013 08.09.2013 · Rostov Oblast |
| Kasyan Sergey Olegovich b. 1990 · Registered · CPRF | Regional assembly, Belgorod Oblast, 2025 14.09.2025 · Belgorod Oblast |
| Kasyanenko Aleksandr Aleksandrovich b. 1989 · Registered · Communists of Russia | Head, Komi Republic, 2025 14.09.2025 · Komi Republic |
| Kasyanenko Aleksandr Aleksandrovich b. 01.06.1989 · Nominated · CPRF | Regional assembly, Komi Republic, 2020 13.09.2020 · Komi Republic |
| Kasyanenko Aleksandr Aleksandrovich b. 1989 · Registered · Communists of Russia | Regional assembly, Komi Republic, 2025 14.09.2025 · Komi Republic |
| Kasyanenko Anna Vladimirovna b. 23.06.1991 · Nominated · United Russia | Regional assembly, Rostov Oblast, 2023 10.09.2023 · Rostov Oblast |
| Kasyanenko Vladimir Mikhaylovich b. 17.08.1947 · Nominated · United Russia | Regional assembly, Rostov Oblast, 2013 08.09.2013 · Rostov Oblast |
| Kasyanik Vladimir Egorovich b. 08.11.1953 · Nominated · Rodina | Regional assembly, Primorsky Krai, 2016 18.09.2016 · Primorsky Krai |
| Kasyanov Aleksandr Vasilevich b. 09.03.1973 · Nominated · A Just Russia | Regional assembly, Rostov Oblast, 2023 10.09.2023 · Rostov Oblast |
| Kasyanov Anatoliy Nikolaevich b. 20.07.1958 · Registered · Patriots of Russia | Regional assembly, Kaliningrad Oblast, 2006 12.03.2006 · Kaliningrad Oblast |
| Kasyanov Andrey Viktorovich b. 27.05.1971 · Nominated · New People | Regional assembly, Republic of Bashkortostan, 2023 10.09.2023 · Republic of Bashkortostan |
| Kasyanov Andrey Viktorovich b. 27.05.1971 · Nominated · New People | Regional assembly, Republic of Bashkortostan, 2023 10.09.2023 · Republic of Bashkortostan |
| Kasyanov Valeriy Pavlovich b. 28.06.1979 · Nominated · LDPR | Regional assembly, Irkutsk Oblast, 2013 08.09.2013 · Irkutsk Oblast |
| Kasyanov Vladimir Yakovlevich b. 13.11.1942 · Nominated · Patriots of Russia | Regional assembly, Republic of Crimea, 2019 08.09.2019 · Republic of Crimea |
| Kasyanov Gennadiy Petrovich b. 11.08.1949 · Registered · United Russia | Regional assembly, Arkhangelsk Oblast, 2004 19.12.2004 · Arkhangelsk Oblast |
| Kasyanov Dmitriy Andreevich b. 22.02.1999 · Nominated · New People | Regional assembly, Republic of Bashkortostan, 2023 10.09.2023 · Republic of Bashkortostan |
| Kasyanov Dmitriy Andreevich b. 22.02.1999 · Nominated · New People | Regional assembly, Republic of Bashkortostan, 2023 10.09.2023 · Republic of Bashkortostan |
| Kasyanov Dmitriy Igorevich b. 1992 · Registered · New People | Regional assembly, Kurgan Oblast, 2025 14.09.2025 · Kurgan Oblast |
| Kasyanov Dmitriy Igorevich b. 1992 · Registered · New People | Regional assembly, Chelyabinsk Oblast, 2025 14.09.2025 · Chelyabinsk Oblast |
| Kasyanov Igor Nikolaevich b. 27.06.1961 · Elected deputy · Party of Pensioners | Regional assembly, Kirov Oblast, 2006 12.03.2006 · Kirov Oblast |
