KGRR (97.3 FM) is a radio station broadcasting an active rock format to the Dubuque, Iowa, United States, area. The station is licensed to Radio Dubuque, Inc.[2] Its transmitter is located alongside U.S. Highway 20 between Dubuque and Peosta on top of the U.S. 20 Bluff.[3]
KGRR was used as the radio station call letters in an episode of 'The Twilight Zone' Nightsong (TV episode 1986 #2.6). The frequency on the show was 93.3 FM and it was located somewhere in California.