| Climber Name | # Ascents Recorded | Notes |
|---|---|---|
| Carol Simpson | 0 | |
| Cat Runner | 0 | |
| Cedar Wright | 0 | |
| Cedric Lo Piccolo | 0 | |
| César Quero | 0 | |
| Charles Bruce | 0 | |
| Charles Cole | 0 | References[1] https://www.climbing.com/news/remembering-five-ten-founder-charles-cole/ |
| Charlie Boscoe | 0 | |
| Charlie Schreiber | 0 | |
| Chelsea Griffie | 0 | |
| Chloe Caulier | 0 | |
| Chloé Graftiaux | 0 | |
| Choe Brooks | 0 | https://www.facebook.com/rockarchivist/photos/a.115405983249621/121210056002547 |
| Chris Baxter | 0 | References[1] https://alpinist.com/newswire/chris-baxter-climber-publisher-pioneer/ |
| Chris Craggs | 0 | |
| Chris Dewhirst | 0 | |
| Chris Glastonbury | 0 | |
| Chris Jones | 0 | References[1] https://gripped.com/profiles/iconic-alpinist-and-author-chris-jones-dies/ |
| Chris Lindner | 0 | |
| Chris McNamara | 0 |