| Headercolor: | lightblue |
| Cha Kwang-Su | |
| Birth Date: | 25 February 1979 |
| Weight: | 550NaN0 |
| Sport: | Wrestling |
| Event: | Greco-Roman |
| Team: | April 25 Sports Club |
| Show-Medals: | yes |
| Context: | north |
| Hangul: | 차광수 |
| Mr: | Ch'a Kwangsu |
| Rr: | Cha Gwangsu |
Cha Kwang-Su (born February 25, 1979) is an amateur North Korean Greco-Roman wrestler, who competed in the men's featherweight category.[1] He won a bronze medal for his division at the 2006 Asian Games in Doha, Qatar.[2] Cha also added three more medals (one gold and two silver) to his collection from the Asian Wrestling Championships.[3]
Cha represented North Korea at the 2008 Summer Olympics in Beijing, where he competed for the men's 55 kg class. He received a bye for the preliminary round of sixteen match, before losing out to Cuba's Yagnier Hernández, who was able to score nine points in two straight periods, leaving Cha with a single point.[4]