| Yoo Yoon-Sik | |
| Fullname: | Yoo Yoon-Sik |
| Nationality: | South Korean |
| Birth Date: | 2 May 1989 |
| Birth Place: | Seongnam, Gyeonggi Province, South Korea |
| Height: | 1960NaN0 |
| Weight: | 750NaN0 |
| Spike: | 3100NaN0 |
| Block: | 3000NaN0 |
| College: | Hanyang University |
| Position: | Outside hitter |
| Currentclub: | Seoul Woori Card Wibee |
| Currentnumber: | 8 |
| Years: | 2011 - 2014 2014 - 2020 2020 - current |
| Nationalyears: | 2017 |
| Nationalteam: | South Korea |
| Medaltemplates-Expand: | set to "yes" to auto-expand medaltemplates section |
Yoo Yoon-Sik (; born 2 May 1989) is a South Korean volleyball player. He competed at the 2017 FIVB World League as part of the South Korea men's national volleyball team. On club level he plays for the Seoul Woori Card Wibee.[1]