| Acronym | Definition |
|---|
| REC | Record |
| REC | Recreation |
| REC | Receiving |
| REC | Regional Environmental Center |
| REC | Receive (telecommunications) |
| REC | Recorder |
| REC | Receiver |
| REC | Rural Electric Cooperative |
| REC | Renewable Energy Corporation ASA (Sandvika, Norway) |
| REC | Receipt(s) |
| REC | Recycle |
| REC | Recruit |
| REC | Research Ethics Committee |
| REC | Recruitment and Employment Confederation (UK) |
| REC | Resources for Early Childhood (Ohio) |
| REC | Renewable Energy Certificate |
| REC | Real Estate Consultant |
| REC | Rectifier |
| REC | Reckoning |
| REC | Research and Education Committee (various organizations) |
| REC | Residential Energy Consumption (energy use category) |
| REC | Real Estate Contract |
| REC | Renewable Energy Credit |
| REC | Rural Electrification Corporation (India) |
| REC | Ryukoku Extension Center (Ryukoku University; Kyoto, Japan) |
| REC | Religious Education Committee (various organizations) |
| REC | Real Estate Club (various organizations) |
| REC | Reach Every Child (education) |
| REC | Reformed Expository Commentary (Bible commentary series) |
| REC | Research and Educational Center (various schools) |
| REC | Recovery File |
| REC | Remote Equivalent Copy |
| REC | Regional Engineering Center |
| REC | Request Confirmation |
| REC | Recording |
| REC | Recognize |
| REC | Reverse Engineering Compiler |
| REC | Reno Events Center (Reno, NV) |
| REC | Raffles Education Corporation (various locations) |
| REC | Regional Economic Communities |
| REC | Republican Executive Committee |
| REC | Reformed Ecumenical Council (Grand Rapids, MI) |
| REC | Reformed Episcopal Church |
| REC | Regional Engineering College |
| REC | Revenue Estimating Conference |
| REC | Resource Exchange Center (various locations) |
| REC | Reed Exhibition Companies (various locations) |
| REC | Rural Electrification Corporation Ltd (India) |
| REC | Regional Education Conference (International Special Events Society) |
| REC | Responsible Endowments Coalition (various organizations) |
| REC | Recognized Environmental Condition (environmental, geoscience, and engineering) |
| REC | Redwood Empire Chapter (various organizations) |
| REC | Regional Examination Center (US Coast Guard) |
| REC | Remote Encoding Center |
| REC | Renal Epithelial Cells |
| REC | Respiratory Epithelial Cells |
| REC | Rescue Emergency Care (Ireland) |
| REC | Record of Environmental Consideration |
| REC | Regional Electricity Company |
| REC | Rehabilitation Engineering Centre (various locations) |
| REC | Responsive Emergency Care |
| REC | Revue Electronique de Communication |
| REC | Renewable Energy Cheaper Than Coal |
| REC | Regional Emergency Coordinator |
| REC | Radio Electronic Combat |
| REC | Regional Environmental Coordinator |
| REC | Rennes Étudiants Club (French: Rennes Students Club; Rennes, France) |
| REC | RECeive Alarm |
| REC | Receive Error Counter (computer networking) |
| REC | Revenue Earning Customer |
| REC | Réseau Européen de la Concurrence (French: European Competition Network; EU) |
| REC | Radio en Construction (French radio station) |
| REC | Recife, Pernambuco, Brazil - Guararapes International (Airport Code) |
| REC | Renaissance Electronics Corp (Harvard, Massachusetts) |
| REC | Rare-Earth Cobalt |
| REC | Resource Efficiency Club (UK) |
| REC | Recollections in Christianity (Sacramento, California) |
| REC | Rabbit Ear Chamber |
| REC | Regional Energy Commission (Russia) |
| REC | Recommender Systems in e-Commerce |
| REC | Request for Engineering Change |
| REC | Roll Eccentricity Compensation (mills) |
| REC | Réduction d'Emissions Certifiée (French) |
| REC | Regional Evaluation Center |
| REC | Random Environment Contest (Robot Battle tournament) |
| REC | Subsafe Re-Entry Control |
| REC | Reinsurance Earned Commissions (insurance) |
| REC | Route Evènementiel Classique (French automobile club) |
| REC | Record of Environmental Compliance |
| REC | Right-Edge Cell |