California Men's Colony
| Location | San Luis Obispo County, near San Luis Obispo, California |
|---|---|
| Coordinates | 35°19′30″N 120°41′53″W / 35.325°N 120.698°W |
| Status | Operational |
| Security class | Minimum to medium (With Maximum on Override) |
| Capacity | 3,816 |
| Population | 3,254 (85.3% capacity) (as of January 31, 2023) |
| Opened | 1954 |
| Managed by | California Department of Corrections and Rehabilitation |
| Warden | Danny Samuel |
California Men's Colony (CMC) is an American male-only state prison located northwest of the city of San Luis Obispo in San Luis Obispo County, California, along the central California coast approximately halfway between Los Angeles and San Francisco.