| Term | Full Form | Category |
|---|---|---|
| OPSB | Office of Personnel Services and Benefits | Others |
| OPSB | Ohio Power Siting Board | Others |
| OPSB | Old Private Sector Bank | Others |
| OPSB | Old Puget Sound Beach | Others |
| OPSB | Open Proxy Scanning Bot | Others |
| OPSB | Ophir Production Sdn Bhd | Others |
| OPSB | Oracle Public Sector Budgeting | Others |
| OPSB | Orbiter Processing Support Building | Others |
| OPSB | Orleans Parish School Board | Others |
| OPSB | Ouachita Parish School Board | Others |
| OPSB | Ouachita Parish School Board, Monroe, Louisiana | Others |
| OPSB | Sibi, Pakistan | Others |