RCR may stand for:

• Fulton County Airport (IATA: RCR)
• Radio Caracas Radio, a Venezuelan radio station
• Ranchi Rays, Indian field hockey team
• Rational consequence relation, a type of consequence relation in mathematical logic
• Ramsbottom Carbon Residue
• RC Relizane, an Algerian football club
• Real closed ring, in mathematics
• Responsible Conduct of Research
• Research and Development Center for Radio Systems, see Association of Radio Industries and Businesses
• Resorts of the Canadian Rockies Inc.
• Retro City Rampage, a 2012 video game
• Rhodes, Chalmers & Rhodes, a vocal group consisting of Charles Chalmers, Sandy Rhodes, and Donna Rhodes, the latter two formerly of the singer-songwriter duo The Lonesome Rhodes
• Richard Childress Racing, a championship-winning NASCAR team
• Richland Creek Reservoir, in the U.S. state of Georgia
• Riot City Ravens, a roller derby league in Newport, Wales
• River City Renaissance, a 1993 urban renewal program in Jacksonville, Florida
• River City Rollergirls, a roller derby team in Richmond, Virginia
• The Royal Canadian Regiment (The RCR)
• Rolling circle replication, in nucleic acid replication
• Royal College of Radiologists, a British professional body