| Acronym | Definition |
|---|
| OCSA➣Orange County School of the Arts (Santa Ana, CA) |
| OCSA➣Ontario Community Support Association (Canada) |
| OCSA➣Oregon Chimney Sweeps Association |
| OCSA➣Ontario Convenience Stores Association |
| OCSA➣Office of the Chief Scientific Adviser (Scotland, UK) |
| OCSA➣Off Campus Student Association |
| OCSA➣Outstanding Community Service Award (various organizations) |
| OCSA➣Olds College Students Association |
| OCSA➣Oregon Creative Services Alliance |
| OCSA➣Outstanding Customer Service Award |
| OCSA➣Osceola County School for the Arts |
| OCSA➣Online Casino Scam Alert |
| OCSA➣Ontario Committee on Student Affairs |
| OCSA➣Overseas Chinese Student Association |
| OCSA➣Oregon Corinthian Sailing Association (Portland, Oregon) |
| OCSA➣Oakland County Superintendents Association |
| OCSA➣Orange County Soaring Association |
| OCSA➣Oregon Community Sports Arena (Oregon, WI) |
| OCSA➣Osceola School for the Arts (Kissimmee, FL) |
| OCSA➣Office, Chief of Staff of the Army |
| OCSA➣Ohio Charter Schools Association |
| OCSA➣OnBase Certified System Administrator (professional credential) |
| OCSA➣Oklahoma Campus Safety Association |
| OCSA➣Oblate Congregation of St Augustine |
| OCSA➣Ordinary Circular Slot Antenna |
| OCSA➣Oracle Client Software Agent |
| OCSA➣Outcrop or Coal Storage Area |
| OCSA➣Orange County Sportsman's Association (Orlando, FL) |