| Syreyschikov Mikhail Dmitrievich b. 12.08.1953 · Registered · CPRF | Regional assembly, Chelyabinsk Oblast, 2005 25.12.2005 · Chelyabinsk Oblast |
| Syreskin Aleksandr Dmitrievich b. 1964 · Registered · A Just Russia | Regional assembly, Republic of Mordovia, 2026 20.09.2026 · Republic of Mordovia |
| Syreskin Aleksandr Dmitrievich b. 1964 · Registered · A Just Russia | Regional assembly, Republic of Mordovia, 2026 20.09.2026 · Republic of Mordovia |
| Syreskina Irina Viktorovna b. 02.04.1962 · Registered · United Russia | Regional assembly, Republic of Mordovia, 2011 04.12.2011 · Republic of Mordovia |
| Syrkin Evgeniy Nikolaevich b. 16.09.1987 · Registered · LDPR | Regional assembly, Republic of Mordovia, 2011 04.12.2011 · Republic of Mordovia |
| Syrkina Oksana Yurevna b. 1985 · Registered · United Russia | Regional assembly, Republic of Mordovia, 2026 20.09.2026 · Republic of Mordovia |
| Syrnikova Nina Alekseevna b. 10.11.1946 · Registered · Samovydvizhenie | By-election · Regional assembly, Bryansk Oblast, 2007 02.12.2007 · Bryansk Oblast |
| Syrnikova Nina Alekseevna b. 10.11.1946 · Registered · Samovydvizhenie | Regional assembly, Bryansk Oblast, 2009 01.03.2009 · Bryansk Oblast |
| Syrov Aleksandr Yurevich b. 19.05.1978 · Registered · CPRF | Head, Udmurt Republic, 2022 11.09.2022 · Udmurt Republic |
| Syrov Aleksandr Yurevich b. 19.05.1978 · Registered · CPRF | State Duma, 2021 19.09.2021 · Russian Federation |
| Syrov Evgeniy Dmitrievich b. 20.02.1956 · Registered · United Russia | Regional assembly, Lipetsk Oblast, 2011 04.12.2011 · Lipetsk Oblast |
| Syrova Natalya Sergeevna b. 30.04.1984 · Registered · United Russia | Regional assembly, Novosibirsk Oblast, 2010 10.10.2010 · Novosibirsk Oblast |
| Syrovatko Viktor Alekseevich b. 31.05.1947 · Registered · Voters’ group | Regional assembly, Kaliningrad Oblast, 2006 12.03.2006 · Kaliningrad Oblast |
| Syrovatko Viktor Alekseevich b. 31.05.1947 · Registered · Voters’ group | Regional assembly, Kaliningrad Oblast, 2006 12.03.2006 · Kaliningrad Oblast |
| Syrovatko Viktor Alekseevich b. 31.05.1947 · Registered · Self-nomination | Governor, Kaliningrad Oblast, 2000 05.11.2000 · Kaliningrad Oblast |
| Syrovatko Viktor Alekseevich b. 31.05.1947 · Registered · Self-nomination | Regional assembly, Kaliningrad Oblast, 2000 05.11.2000 · Kaliningrad Oblast |
| Syrovatskaya Astorik Antonovna b. 20.12.1940 · Registered · CPRF | Regional assembly, Kaluga Oblast, 2004 14.11.2004 · Kaluga Oblast |
| Syrovatskaya Astorik Antonovna b. 20.12.1940 · Registered · CPRF | Regional assembly, Kaluga Oblast, 2004 14.11.2004 · Kaluga Oblast |
| Syrovatskiy Aleksandr Ivanovich b. 30.01.1961 · Registered · Self-nomination | Regional assembly, Rostov Oblast, 2003 30.03.2003 · Rostov Oblast |
| Syrovatskiy Nikolay Mikhaylovich b. 19.05.1948 · Registered · Voters’ group | Regional assembly, Kabardino-Balkarian Republic, 2003 07.12.2003 · Kabardino-Balkarian Republic |
| Syrovatskiy Nikolay Mikhaylovich b. 19.05.1948 · Registered · Voters’ group | Regional assembly, Kabardino-Balkarian Republic, 2003 07.12.2003 · Kabardino-Balkarian Republic |
| Syroegin Andrey Vasilevich b. 14.07.1979 · Registered · Party of Pensioners | Regional assembly, Kostroma Oblast, 2005 04.12.2005 · Kostroma Oblast |
| Syroed Aleksey Vladimirovich b. 02.09.1970 · Registered · Samovydvizhenie | By-election · Regional assembly, Khabarovsk Krai, 2012 14.10.2012 · Khabarovsk Krai |
| Syroezhkin Konstantin Aleksandrovich b. 30.05.1946 · Registered · Self-nomination | Regional assembly, Yaroslavl Oblast, 2000 26.03.2000 · Yaroslavl Oblast |
| Syroezhkin Sergey Nikolaevich b. 05.11.1956 · Registered · Self-nomination | Regional assembly, Tver Oblast, 2000 25.06.2000 · Tver Oblast |
| Syrtsev Denis Leonidovich b. 28.06.1976 · Registered · CPRF | Regional assembly, Perm Krai, 2011 04.12.2011 · Perm Krai |
| Syrtsev Pavel Nikolaevich b. 23.01.1973 · Registered · Party of Pensioners | Regional assembly, Kirov Oblast, 2006 12.03.2006 · Kirov Oblast |
| Syrykh Georgiy Alekseevich b. 05.01.1968 · Registered · Self-nomination | Regional assembly, Altai Republic, 2006 12.03.2006 · Altai Republic |
| Syrykh Elena Sergeevna b. 01.12.1980 · Registered · Party of Pensioners | Regional assembly, Orenburg Oblast, 2006 12.03.2006 · Orenburg Oblast |
| Syskin Aleksandr Prokopevich b. 19.05.1954 · Registered · Voters’ group | Regional assembly, Republic of Khakassia, 2004 26.12.2004 · Republic of Khakassia |
| Syskin Aleksandr Prokopevich b. 19.05.1954 · Registered · Patriots of Russia | State Duma, 2007 02.12.2007 · Russian Federation |
| Sysoev Aleksandr Vladimirovich b. 28.03.1980 · Registered · Yabloko | State Duma, 2011 04.12.2011 · Russian Federation |
| Sysoev Aleksandr Vladimirovich b. 04.10.1965 · Registered · A Just Russia | State Duma, 2007 02.12.2007 · Russian Federation |
| Sysoev Aleksandr Vladimirovich b. 25.05.1983 · Registered · United Russia | Regional assembly, Bryansk Oblast, 2009 01.03.2009 · Bryansk Oblast |
| Sysoev Aleksandr Vladimirovich b. 04.10.1965 · Registered · Self-nomination | State Duma, 2003 07.12.2003 · Russian Federation |
| Sysoev Aleksandr Mitrofanovich b. 05.11.1951 · Registered · United Russia | Regional assembly, Voronezh Oblast, 2010 14.03.2010 · Voronezh Oblast |
| Sysoev Aleksandr Mikhaylovich b. 21.04.1958 · Registered · United Russia | Regional assembly, Stavropol Krai, 2007 11.03.2007 · Stavropol Krai |
| Sysoev Aleksandr Mikhaylovich b. 21.04.1958 · Registered · LDPR | State Duma, 2016 18.09.2016 · Russian Federation |
| Sysoev Aleksandr Sergeevich b. 18.03.1952 · Registered · Patriots of Russia | Regional assembly, Tomsk Oblast, 2007 11.03.2007 · Tomsk Oblast |
| Sysoev Aleksandr Sergeevich b. 18.03.1952 · Registered · Patriots of Russia | State Duma, 2007 02.12.2007 · Russian Federation |
| Sysoev Andrey Sergeevich b. 1990 · Registered · United Russia | Regional assembly, Novosibirsk Oblast, 2025 14.09.2025 · Novosibirsk Oblast |
| Sysoev Valeriy Egorovich b. 13.08.1956 · Registered · Voters’ group | Regional assembly, Altai Krai, 2004 06.06.2004 · Altai Krai |
| Sysoev Vladimir Vladimirovich b. 1973 · Registered · LDPR | Regional assembly, Yamalo-Nenets Autonomous Okrug, 2025 14.09.2025 · Yamalo-Nenets Autonomous Okrug |
| Sysoev Vladimir Vladimirovich b. 21.06.1973 · Registered · LDPR | State Duma, 2016 18.09.2016 · Russian Federation |
| Sysoev Vladimir Vladimirovich b. 1973 · Registered · LDPR | Regional assembly, Khanty-Mansi Autonomous Okrug – Yugra, 2026 20.09.2026 · Khanty-Mansi Autonomous Okrug |
| Sysoev Vladimir Yakovlevich b. 01.06.1956 · Registered · Party of Pensioners | Regional assembly, Voronezh Oblast, 2005 20.03.2005 · Voronezh Oblast |
| Sysoev Vladislav Igorevich b. 1994 · Registered · LDPR | Regional assembly, Magadan Oblast, 2025 14.09.2025 · Magadan Oblast |
| Sysoev Evgeniy Valentinovich b. 27.05.1963 · Registered · LDPR | Regional assembly, Jewish Autonomous Oblast, 2006 08.10.2006 · Jewish Autonomous Oblast |
| Sysoev Evgeniy Valentinovich b. 02.08.1966 · Registered · Patriots of Russia | State Duma, 2007 02.12.2007 · Russian Federation |
| Sysoev Evgeniy Valentinovich b. 27.05.1963 · Registered · LDPR | Regional assembly, Jewish Autonomous Oblast, 2006 08.10.2006 · Jewish Autonomous Oblast |
