CUO
| Acronym | Definition |
|---|---|
| CUO | Chief Underwriting Officer |
| CUO | Cadet Under Officer |
| CUO | Copenhagen University Observatory (Denmark) |
| CUO | Chief Underpants Officer (Joe Boxer) |
| CUO | Columbia University Orchestra (New York, NY) |
| CUO | Carcinoma of Unknown Origin (cancer) |