OMCC
| Acronym | Definition |
|---|---|
| OMCC | Operation: Military Child Care |
| OMCC | Organismo Mundial de Cursillos de Cristiandad (World Organisation of the Cursillo Movement) |
| OMCC | Olimpiada Matemática de Centroamérica y el Caribe (Mathematical Olympiad of Centroamerica and the Caribbean) |
| OMCC | Oakland Metropolitan Chamber of Commerce (est. 1905; Oakland, CA) |
| OMCC | Office of Motor Carrier Compliance |
| OMCC | O Mai Ceiling Cat (I Can Has Cheezburger?) |
| OMCC | Oak Meadow Country Club (Rolla, Missouri) |