| Acronym | Definition |
|---|
| REP | Representative |
| REP | Reply |
| REP | Repair |
| REP | Repeat |
| REP | Reputation |
| REP | Registered Education Provider |
| REP | Republican |
| REP | Retail Electric Provider |
| REP | Repetition |
| REP | Republicans for Environmental Protection |
| REP | Routledge Encyclopedia of Philosophy |
| REP | Republikaner (German Conservative Party) |
| REP | Reasonable Expectation of Privacy (law) |
| REP | Rab Escort Protein |
| REP | Reynolds Number |
| REP | Renewable Energy Project (Nepal) |
| REP | Radiological Emergency Preparedness |
| REP | Repose en Paix (French: Rest in Peace; band) |
| REP | Roentgen Equivalent Physical |
| REP | Requirements Engineering Process |
| REP | Retail Energy Provider |
| REP | Reconnaissance de l'Expérience Professionnelle (French: Recognition of Professional Experience) |
| REP | Régiment Etranger Parachutiste (French: Parachute Infantry Regiment) |
| REP | Release Reuse Equivalency Principle |
| REP | Reserve Enlistment Program |
| REP | Réseau Ecologique Paneuropéen (French: Pan-European Ecological Network) |
| REP | Radioisotope Electric Propulsion |
| REP | Recognised Environmental Picture (British Royal Navy tool) |
| REP | Relativistic Electron Precipitation |
| REP | Radio Emergency Patrol (NYPD) |
| REP | Relativistic Effective Potential |
| REP | Read-Evaluate-Print |
| REP | Represent/Represented |
| REP | Reasonable Efforts Program |
| REP | Resonance Escape Probability |
| REP | Range Error Probable |
| REP | Realtek Echo Protocol |
| REP | Regional Equalisation Plan (Australia) |
| REP | Regional Evacuation Point |
| REP | Residue Elimination Project |
| REP | Residue Elimination Program |
| REP | Réaction Extra-Pyramidale |
| REP | Rating to Economic Performance (HSBC stock valuation tool) |
| REP | Radio-Electronic Protection |
| REP | Reinsurance Earned Premiums |
| REP | Refined Engineering Prototype |
| REP | Race Equality Policy (various organizations) |
| REP | Recreation Engineering and Planning (Boulder, CO) |
| REP | Re-Entry Partnership (various locations) |
| REP | Real Estate Professional |
| REP | Re-Entry Permit (immigration) |
| REP | Real Estate Publisher |