| Oxygen Pressure Regulator |
Space Science |
OPR |
| optical page reader, 6 |
Government |
OPR |
| Operator |
Military |
OPR |
| Oregon Pacific Railroad Company |
Regional Railroad |
OPR |
| Orbiter/payload Recorder |
Space Science |
OPR |
| Office of Primary Responsibility |
US Government |
OPR |
| Office Procedures Reinforcement |
Business |
OPR |
| Old Parish Records |
Medical |
OPR |
| operation planning report |
Government |
OPR |
| Ontario Pacific Railway |
Regional Railroad |
OPR |
| Official Public Record |
US Government |
OPR |
| offsite procurement request |
Government |
OPR |
| Official Poker Rankings |
Sports |
OPR |
| Organization of Primary Responsibility |
Military |
OPR |
| Operating Performance Regime |
Australian |
OPR |
| Operations Planning Review |
Space Science |
OPR |
| Officer Performance Report |
Military |
OPR |
| Office of Professional Responsibility |
FBI File |
OPR |
| optical page reading |
Government |
OPR |
