| Birth Place: | Mykolaiv, Ukrainian SSR, Soviet Union |
| Height: | 178 cm |
| Weight: | 69 kg |
| Sport: | Freestyle skiing |
| Club: | Ukraïna Mykolaïv |
| Show-Medals: | yes |
Serhiy But (uk|Сергій Бут; born 20 November 1969) is a retired Ukrainian freestyle skier. He competed in the men's aerial event at the 1992 (demonstration), 1994 and 1998 Winter Olympics.