UCR may refer to:
- Aero Charter Airlines (ICAO code UCR)
- "Un certain regard", a section of the Cannes Film Festival
- Under color removal
- Unified Cornish Revised, a variety of the Cornish language
- Uniform Crime Reports
- Union centriste et républicaine (Centrist and Republican Union), a parliamentary centrist group of the French senate
- Unión Cívica Radical (Radical Civic Union), an Argentinian political party
- Union des cercles résistance (1996–1998), a French far-right political group close to the Third Position and National Bolshevism theses, now merged into the Unité radicale
- Unités de combat et de renseignement (Intelligence and Combat Units), during World War II, units deployed by the French Résistance's Bureau central de renseignements et d'action
- University Center Rochester, in Minnesota.
- University of California, Riverside
- University of Costa Rica
- Upper Chattahoochee Riverkeeper
- Usual, customary and reasonable, a method of generating health care prices