REC
- Ethics committee
- REC Limited
- Railway Executive Committee
- Rajalakshmi Engineering College
- Rec (film series)
- Rec (film)
- Rec (manga)
- Rec.
- Recife/Guararapes–Gilberto Freyre International Airport
- Recitation
- Recording (disambiguation)
- Rectory Road railway station
- Reformed Episcopal Church
- Regional Economic Communities
- Regional Engineering College
- Regional electricity company
- Renewable Energy Certificate (United States)
- Renewable Energy Corporation
- Reç
- Reč
- Rock Eisteddfod Challenge
- Rural Electrification Corporation
- Usenet newsgroup