KRR may refer to:
- FK Jūrnieks, a Latvian football club, known as KRR from 1964 to 1968
- Kallio Rolling Rainbow, a Finnish roller derby league
- Kiamichi Railroad, reporting mark
- Krasnodar International Airport, North Caucasus, Russia, IATA Code
- Kommissarische Reichsregierung, a German political movement
- K. R. Ramasamy (actor) (1914–1971), Indian actor and singer in Tamil cinema
- Knowledge representation and reasoning in artificial intelligence
See also
edit- KRR1, a protein