| Term | Full Form | Category |
|---|---|---|
| OCHA | Off Campus Housing Affairs | Others |
| OCHA | Off Campus Housing Assistance | Others |
| OCHA | Oklahoma City Housing Authority | Others |
| OCHA | Orange County Housing Authority | Others |
| OCHA | Oregon Council for Hispanic Advancement | Others |
| OCHA | United Nations Office for the Coordination of Humanitarian Affairs![]() | Department, Organization |