CKMH-FM (105.3 MHz) is a Canadian radio station that broadcasts an active rock format in Medicine Hat, Alberta. The station is branded as 105.3 Rock and is currently owned by Rogers Radio, a division of Rogers Sports & Media.

The station was licensed by the Canadian Radio-television and Telecommunications Commission in 2007. After beginning on-air testing on January 29, 2008, CKMH signed on February 25, 2008 at 1:05 PM.