| Acronym | Definition |
|---|
| ORA➣Office of Research and Applications (US NOAA) |
| ORA➣Office of Regulatory Affairs |
| ORA➣Optical Research Associates |
| ORA➣Obligations Remboursables en Actions (French: Bonds Reimbursable in Shares) |
| ORA➣Oracle |
| ORA➣or with Accumulator |
| ORA➣Output Register a |
| ORA➣Outstanding Research Award (various organizations) |
| ORA➣O'Reilly Associates (various organizations) |
| ORA➣Office of Research Affairs |
| ORA➣Open Records Act |
| ORA➣Oil Region Alliance (Oil City, PA) |
| ORA➣Office of Rent Administration (New York) |
| ORA➣Online Reading Assessment |
| ORA➣Operations Research Analyst |
| ORA➣Operational Risk Assessment |
| ORA➣Oregon Rehabilitation Association |
| ORA➣Office of Regional Affairs |
| ORA➣Organizational Registration Authority |
| ORA➣Operational Readiness Assessment |
| ORA➣Output Response Analyzer |
| ORA➣Opioid Receptor Agonist (neurophysiology) |
| ORA➣Organización Revolucionaria Anarquista (Spanish: Anarchist Revolutionary Organization, Argentina) |
| ORA➣Optimal Rate Allocation |
| ORA➣OR with Accumulator (6502 processor instruction) |
| ORA➣Orthopaedic Rehabilitation Association |
| ORA➣Ontario Rifle Association |
| ORA➣Oklahoma Rifle Association (Yukon, OK) |
| ORA➣Organization de Resistance de l'Armée (French: Organization Resistance Army) |
| ORA➣Orth-Rodgers Associates (Mechanicsburg, PA) |
| ORA➣Office of Ratepayers Advocates (California) |
| ORA➣Ontario Rodeo Association |
| ORA➣Office of Research Analysis |
| ORA➣Operational Requirements Analysis |
| ORA➣Organization for the Resolution of Agunot, Inc. |
| ORA➣Obsolete or Redundant Acronym (humor) |
| ORA➣Optical Reference Assembly |
| ORA➣Office of Review & Appeals |
| ORA➣Order of the Red Army |
| ORA➣Orlando Rowing Association |
| ORA➣Optical Raman Amplification |