sort by Rank | Alpha
| Possible Meanings | Rank |
| Other Public Access Areas | **** |
| Office of Post Award Administration | *** |
| Outstanding PolyU Alumni Award | ** |
| Office of Planning Analysis and Accountability | ** |
| Organization for the Prevention of AIDS in Africa | ** |
| Oregon Political Accountability Act | ** |
| One Plus Agent Association | ** |
| Office of Planning Analysis Accountability | * |
| Office of Program Analysis and Audit | * |
| Ohio Protection and Advocacy Agency | * |
| Oat Producers Association of Alberta | * |
| ORANGE PARK ATHLETIC ASSOCIATION | * |
| Odin Perth Altar of Art | * |