KRR

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)
 * Knowledge representation and reasoning in artificial intelligence