| Birth Date: | 1984 4, df=yes |
| Birth Place: | Kirovo-Chepetsk, USSR |
| Position: | Defence |
| Height Ft: | 6 |
| Height In: | 0 |
| Weight Lb: | 212 |
| Shoots: | Left |
| Team: | Kunlun Red Star |
| League: | KHL |
| Former Teams: | Torpedo Nizhny Novgorod Neftekhimik Nizhnekamsk Molot-Prikamye Perm Krylya Sovetov Moscow SKA Saint Petersburg Amur Khabarovsk HC Donbass Lokomotiv Yaroslavl HC Vityaz Piráti Chomutov HC Ugra |
| Career Start: | 2001 |
Sergei Peretyagin (born 19 April 1984) is a Russian professional ice hockey defenceman who is currently playing for Kunlun Red Star of the Kontinental Hockey League (KHL). He is in his second stint with the Red Star, having played in their inaugural season in the KHL in 2016–17 before briefly joining HC Ugra.[1]