| Acronym | Definition |
|---|
| REA | Block-Repeat End Address Register |
| REA | Radiological Emergency Assistance (team) |
| REA | Radiological Engineering Assessment |
| REA | Rail Express Agency |
| REA | Railway Express Agency |
| REA | Ralph Engelstad Arena (University of North Dakota, Grand Forks) |
| REA | Rapid Ecological Assessment |
| REA | Rapid Environmental Assessment |
| REA | Rauchgas-Entschwefelungs-Anlage (power plant) |
| REA | Reciprocal Easements Agreement |
| REA | Red Equipment Area |
| REA | Reduced Earnings Allowance (retired on medical grounds) |
| REA | Reentry Angle |
| REA | Registered Environmental Assessor |
| REA | Remote Electronic Access |
| REA | Remote Entity Approximation |
| REA | Repertorio Economico Amministrativo |
| REA | Report Enemy Activity |
| REA | Request for Engineering Action |
| REA | Request for Equitable Adjustment |
| REA | Research and Education Association |
| REA | Research, Evaluation & Assessment |
| REA | Resident Evil: Apocalypse (movie) |
| REA | Resources, Events, Agents |
| REA | Responsible Engineering Authority |
| REA | Retired Educators Association |
| REA | Retired Enlisted Association |
| REA | Retirement Equity Act of 1984 |
| REA | Rib Eye Area |
| REA | Ribeye Area |
| REA | Rocket Engine Assembly |
| REA | Rural Electric Association |
| REA | Rural Electrification Administration |
| REA | Russian Education Academy |
| REA | US Revenue Beer (Scott Catalogue prefix; philately) |