| 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) |