| Christopher Cosser | |
| Nationality: | South African |
| Birth Date: | 12 December 2000 |
| Birth Place: | Johannesburg, South Africa |
| Occupation: | Professional climber |
| Height: | 1.78 m |
| Typeofclimber: | Competition climbing |
| Show-Medals: | yes |
Christopher Cosser (born 12 December 2000) is a South African competition climber.[1] He won the combined event at the 2020 African Climbing Championships. This qualified him for the combined event at the 2020 Summer Olympics, where he finished 16th out of 20 competitors.[2] In December 2023, Cosser placed second in the 2023 African Continental Qualifier behind Mel Janse Van Rensburg and therefore failed to qualify for the 2024 Summer Olympics.[3]