| Sergei Nikulin | |
| Fullname: | Sergei Nikolayevich Nikulin |
| Height: | 1.73 m |
| Birth Date: | 1 January 1951 |
| Birth Place: | Stalinabad, Tajik SSR |
| Position: | Defender |
| Youthclubs1: | FC Dynamo Moscow |
| Years1: | 1969–1984 |
| Years2: | 1984–1985 |
| Clubs2: | FC Dynamo Kashira |
| Caps1: | 280 |
| Caps2: | 23 |
| Goals1: | 1 |
| Goals2: | 0 |
| Nationalyears1: | 1974–1979 |
| Nationalteam1: | USSR |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
| Manageryears1: | 1986–1988 |
| Manageryears2: | 1988–1990 |
| Manageryears3: | 1990–2004 |
| Manageryears4: | 2004 |
| Managerclubs1: | FC Dynamo Moscow (youth teams) |
| Managerclubs2: | FC Dynamo-2 Moscow (director) |
| Managerclubs3: | FC Dynamo Moscow (director) |
| Managerclubs4: | FC Dynamo Moscow (assistant) |
Sergei Nikolayevich Nikulin (Russian: Серге́й Николаевич Никулин; born 1 January 1951) is a former Soviet football player and a current Russian coach.
Nikulin made his debut for USSR on 30 October 1974 in a UEFA Euro 1976 qualifier against Ireland. He did not play for the national team again until 1979, when he played in a UEFA Euro 1980 qualifier.