| Sinkevich Yuriy Nikolaevich b. 11.11.1944 · Registered · Self-nomination | Regional assembly, Primorsky Krai, 2001 09.12.2001 · Primorsky Krai |
| Sinkov Petr Vasilevich b. 18.06.1961 · Registered · "Khakasskoe regionalnoe otdelenie Kommunisticheskoy partii Rossiyskoy Federatsii" | Regional assembly, Republic of Khakassia, 2009 01.03.2009 · Republic of Khakassia |
| Sinkovskiy Yuriy Aleksandrovich b. 19.09.1966 · Registered · A Just Russia | State Duma, 2011 04.12.2011 · Russian Federation |
| Sinyugin Vasiliy Sergeevich b. 07.11.1954 · Registered · Self-nomination | Repeat · Regional assembly, Kursk Oblast, 2007 11.03.2007 · Kursk Oblast |
| Sinyuk Kirill Yurevich b. 27.12.1982 · Registered · United Russia | Regional assembly, Krasnoyarsk Krai, 2007 15.04.2007 · Krasnoyarsk Krai |
| Sinyukov Vladimir Aleksandrovich b. 24.04.1956 · Registered · LDPR | Regional assembly, Kaluga Oblast, 2004 14.11.2004 · Kaluga Oblast |
| Sinyushkin Vladimir Leonidovich b. 05.02.1952 · Registered · Self-nomination | Regional assembly, Nenets Autonomous Okrug, 2001 14.01.2001 · Nenets Autonomous Okrug |
| Sinyavskiy Aleksey Ivanovich b. 16.04.1953 · Registered · LDPR | Regional assembly, Vladimir Oblast, 2009 01.03.2009 · Vladimir Oblast |
| Sinyavskiy Aleksey Ivanovich b. 16.04.1953 · Registered · LDPR | Regional assembly, Vladimir Oblast, 2005 20.03.2005 · Vladimir Oblast |
| Sinyavskiy Anatoliy Vasilevich b. 15.08.1951 · Registered · Patriots of Russia | State Duma, 2011 04.12.2011 · Russian Federation |
| Sinyavskiy Anatoliy Vasilevich b. 15.08.1951 · Registered · Patriots of Russia | Regional assembly, Krasnodar Krai, 2012 14.10.2012 · Krasnodar Krai |
| Sinyavskiy Anatoliy Vasilevich b. 15.08.1951 · Registered · Patriots of Russia | Regional assembly, Krasnodar Krai, 2012 14.10.2012 · Krasnodar Krai |
| Sinyagin Aleksandr Mikhaylovich b. 13.10.1949 · Registered · CPRF | State Duma, 2011 04.12.2011 · Russian Federation |
| Sinyagin Aleksandr Mikhaylovich b. 13.10.1949 · Registered · CPRF | Regional assembly, Vladimir Oblast, 2009 01.03.2009 · Vladimir Oblast |
| Sinyagin Aleksandr Mikhaylovich b. 13.10.1949 · Registered · CPRF | State Duma, 2007 02.12.2007 · Russian Federation |
| Sinyagin Aleksandr Mikhaylovich b. 13.10.1949 · Registered · Self-nomination | Head, Vladimir Oblast, 2000 10.12.2000 · Vladimir Oblast |
| Sinyagina Yuliya Evgenevna b. 1989 · Registered · New People | By-election · Regional assembly, Ulyanovsk Oblast, 2026 20.09.2026 · Ulyanovsk Oblast |
| Sinyagovskiy Zakhar Olegovich b. 27.10.1989 · Registered · LDPR | Regional assembly, Sakhalin Oblast, 2012 14.10.2012 · Sakhalin Oblast |
| Sinyagovskiy Zakhar Olegovich b. 27.10.1989 · Registered · LDPR | State Duma, 2011 04.12.2011 · Russian Federation |
| Sinyaev Vyacheslav Aleksandrovich b. 24.12.1970 · Registered · United Russia | State Duma, 2011 04.12.2011 · Russian Federation |
| Sinyak Tatyana Aleksandrovna b. 04.03.1965 · Registered · Samovydvizhenie | Regional assembly, Sakha Republic (Yakutia), 2008 02.03.2008 · Sakha Republic (Yakutia) |
| Sinyakov Vladimir Mikhaylovich b. 05.11.1948 · Registered · Self-nomination | Regional assembly, Kaliningrad Oblast, 2000 05.11.2000 · Kaliningrad Oblast |
| Sinyakov Vladimir Mikhaylovich b. 05.11.1948 · Registered · Patriots of Russia | Regional assembly, Kaliningrad Oblast, 2006 12.03.2006 · Kaliningrad Oblast |
| Sinyatkin Evgeniy Mikhaylovich b. 07.06.1980 · Registered · LDPR | Regional assembly, Novosibirsk Oblast, 2005 11.12.2005 · Novosibirsk Oblast |
| Sinyatkin Evgeniy Mikhaylovich b. 07.06.1980 · Registered · LDPR | Regional assembly, Novosibirsk Oblast, 2005 11.12.2005 · Novosibirsk Oblast |
| Sinev Aleksey Sergeevich b. 09.08.1978 · Registered · A Just Russia | By-election · Regional assembly, Ivanovo Oblast, 2017 26.03.2017 · Ivanovo Oblast |
| Sineva Elena Nikolaevna b. 1980 · Registered · United Russia | Regional assembly, Pskov Oblast, 2026 20.09.2026 · Pskov Oblast |
| Siorpas Nikolay Vladimirovich b. 04.10.1951 · Registered · Self-nomination | Regional assembly, Tuva Republic, 2006 08.10.2006 · Tuva Republic |
| Siorpas Sergey Vladimirovich b. 12.02.1955 · Registered · Self-nomination | Regional assembly, Tuva Republic, 2006 08.10.2006 · Tuva Republic |
| Siorpas Sergey Vladimirovich b. 12.02.1955 · Registered · Self-nomination | Regional assembly, Tuva Republic, 2002 02.06.2002 · Tuva Republic |
| Siorpas nikolay Vladimirovich b. 04.09.1952 · Registered · Voters’ group | Regional assembly, Tuva Republic, 2002 02.06.2002 · Tuva Republic |
| Sipacheva Marina Vladimirovna b. 21.04.1965 · Registered · United Russia | Regional assembly, Novosibirsk Oblast, 2010 10.10.2010 · Novosibirsk Oblast |
| Sipkin Vladimir Vasilevich b. 18.02.1953 · Registered · United Russia | Regional assembly, Krasnoyarsk Krai, 2011 04.12.2011 · Krasnoyarsk Krai |
| Sipovich Lyubov Andreevna b. 13.10.1957 · Registered · The Greens | Regional assembly, Krasnodar Krai, 2012 14.10.2012 · Krasnodar Krai |
| Sipovich Lyubov Andreevna b. 13.10.1957 · Registered · The Greens | Regional assembly, Saratov Oblast, 2012 14.10.2012 · Saratov Oblast |
| Sipovich Lyubov Andreevna b. 13.10.1957 · Registered · The Greens | Regional assembly, Samara Oblast, 2007 11.03.2007 · Samara Oblast |
| Sipovich Lyubov Andreevna b. 13.10.1957 · Registered · The Greens | Regional assembly, Udmurt Republic, 2012 14.10.2012 · Udmurt Republic |
| Sipovich Lyubov Andreevna b. 13.10.1957 · Registered · The Greens | Regional assembly, Republic of North Ossetia–Alania, 2012 14.10.2012 · Republic of North Ossetia–Alania |
| Sipovich Lyubov Andreevna b. 13.10.1957 · Registered · The Greens | Regional assembly, Penza Oblast, 2012 14.10.2012 · Penza Oblast |
| Sipovich Lyubov Andreevna b. 13.10.1957 · Registered · The Greens | Regional assembly, Republic of Kalmykia, 2008 02.03.2008 · Republic of Kalmykia |
| Sipyagin Vladimir Vladimirovich b. 19.02.1970 · Registered · LDPR | State Duma, 2016 18.09.2016 · Russian Federation |
| Sipyagin Vladimir Vladimirovich b. 19.02.1970 · Registered · LDPR | Governor, Vladimir Oblast, 2018 09.09.2018 · Vladimir Oblast |
| Sipyagin Vladimir Vladimirovich b. 19.02.1970 · Registered · LDPR | Governor, Vladimir Oblast, 2013 08.09.2013 · Vladimir Oblast |
| Siraev Damir Muftikhanovich b. 19.07.1957 · Registered · A Just Russia | Regional assembly, Republic of Bashkortostan, 2008 02.03.2008 · Republic of Bashkortostan |
| Siraev Ilnar Rashitovich b. 31.01.1984 · Registered · A Just Russia | By-election · Regional assembly, Republic of Tatarstan, 2023 28.05.2023 · Republic of Tatarstan |
| Siraev Ilnar Rashitovich b. 31.01.1984 · Registered · A Just Russia | State Duma, 2021 19.09.2021 · Russian Federation |
| Siraev Ilnar Rashitovich b. 31.01.1984 · Registered · A Just Russia | By-election · State Duma, 2020 13.09.2020 · Russian Federation |
| Siraev Ilnur Khatibovich b. 05.06.1983 · Registered · Politicheskaya partiya «Demokraticheskaya partiya Rossii» | State Duma, 2007 02.12.2007 · Russian Federation |
| Sirazetdinov Farit Khamitovich b. 10.06.1949 · Registered · United Russia | Regional assembly, Republic of Bashkortostan, 2008 02.03.2008 · Republic of Bashkortostan |
| Sirazetdinova Marina Valentinovna b. 1975 · Registered · United Russia | Regional assembly, Magadan Oblast, 2025 14.09.2025 · Magadan Oblast |
