Sergei Afanasiev
Sergei Afanassjew is the name of the following people:
- Sergei Afanassjew (athlete) (born 1964), Soviet middle-distance runner
- Sergei Alexandrowitsch Afanassjew (1918–2001), Soviet engineer
- Sergei Andrejewitsch Afanassjew (* 1988), Russian racing driver
