sort by Rank | Alpha
| Possible Meanings | Rank |
| Oregon Poison Control Center | ** |
| Orthodox Pastoral Counseling Center | ** |
| Office for the Protection of Competition and Consumers | ** |
| Old Pauline Cricket Club | ** |
| Office for Protection of Competition and Consumers | ** |
| Overland Park Convention Center | ** |
| Office of the Public Complaints Commissioner | ** |
| Opinions of Probable Construction Cost | ** |
| Olympic Peaks Camera Club | ** |
| orissa pradesh congress committee | ** |
| Office for the Protection of Citizens | ** |
| Oxen Park Cinema Club | ** |
| Optically Perfect Complex Curve | ** |
| Oakland Park Conservation Club | ** |
| Office of the Privacy Commissioner of Canada | ** |
| Oak Park Computer Club | ** |
| oklahoma poison control center | ** |
| Ocean Park Community Ctr | ** |
| Office of Police Complaint Commissioner | ** |
| Ohio Poison Control Collaborative | ** |
| Onondaga Pastoral Counseling Center | ** |
| Old Park Community Centre | ** |
| Oregon Partnership for Cancer Control | ** |
| Oughtrington Park Cricket Club | ** |
| Oyster Point Construction Company | ** |
| Offshore Pollock Catchers Cooperative | * |
| Optical Product Code Council | * |
| Oakville Parent Child Centre | * |
| Ontario Provincial Code Committee | * |
| Optical Phase Conductor Cable | * |
| Offutt Processing and Correlation Center | * |
| Ohio Partners for Cancer Control | * |
| Old Portlians Cycling Club | * |
| Older Persons Consultative Committee | * |
| Ontario Pipeline Coordinating Committee | * |
| Oak Park Concert Chorale | * |
| Of Poison Control Centers | * |
| Ordinary Portland Cement Concrete | * |
| Other Pointed Colors Class | * |
| overland park convention ctr | * |
| Overseas Press Club of Cambodia | * |