| Kwak Seung-suk | |
| Nationality: | South Korean |
| Birth Date: | 23 March 1988 |
| Birth Place: | Busan |
| Height: | 1.90NaN0 |
| Weight: | 810NaN0 |
| Spike: | 3250NaN0 |
| Block: | 3200NaN0 |
| College: | Kyonggi University |
| Position: | Outside hitter |
| Currentclub: | Incheon Korean Air Jumbos |
| Currentnumber: | 9 |
| Years: | 2010– |
| Teams: | Korean Air Jumbos |
| Nationalyears: | 2011– |
| Nationalteam: | South Korea |
Kwak Seung-suk (; born 23 March 1988) is a South Korean volleyball player. He was part of the South Korea men's national volleyball team at the 2014 FIVB Volleyball Men's World Championship in Poland.[1] He currently plays for the Incheon Korean Air Jumbos.