| Height Ft: | 6 |
| Height In: | 10 |
| Birth Date: | 19 September 1961 |
| Birth Place: | Ulan-Ude, Russian Soviet Federative Socialist Republic, Soviet Union |
| Nationality: | Estonian |
| Career Position: | Power forward / center |
| Career End: | 1998 |
| Years1: | ?–? |
| Team1: | Lokomotiv Chabarovsk |
| Years2: | ?–? |
| Team2: | BC Donetsk |
| Years3: | 1989–1992 |
| Team3: | KK Kalev |
| Years4: | 1992 - 1994 |
| Team4: | Maccabi Ramat Gan |
| Years5: | 1994 - 1995 |
| Team5: | MBK Dynamo Moscow |
| Years6: | 1998 |
| Team6: | Elitzur Ashkelon |
| Highlights: |
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Sergei Babenko (born 19 September 1961) is an Estonian retired professional basketball player who played mostly at the shooting guard position. His most notable achievement as a member of the Soviet Union national team was the winning of the silver medal in the 1987 EuroBasket competition.[1] He was also a member of KK Kalev, who won the USSR Premier Basketball League in 1991.[2] He was 6th in EuroBasket 1993 with Estonia national team.