| Office: | Member of the State Duma (Party List Seat) |
| Term Start: | 12 October 2021 |
| Term End: | 18 October 2021 |
| Successor: | Anton Tkachev |
| Birth Date: | 12 August 1996 |
| Birth Place: | Kalininsk, Saratov Oblast, Russia |
| Party: | New People |
| Blank1: | Religion |
| Education: | Plekhanov Russian University of Economics |
Sergey Dmitrievich Chudaev (Russian: Сергей Дмитриевич Чудаев; born 12 August 1996, Kalininsk, Saratov Oblast) is a Russian political figure and a former deputy of the 8th State Duma. He graduated from the Plekhanov Russian University of Economics. Later Chudaev engaged in politics and soon became a member of the New People. In September 2021, he was elected deputy of the 8th State Duma; however, he resigned ahead of schedule on 19 October 2021, explaining this by the desire to focus on his work in Udmurtia. Politician Anton Tkachev took over his mandate.[1] [2] [3]