CK, Ck, or ck may refer to:
CKY is an American heavy metal band from West Chester, Pennsylvania. Formed in 1998 by vocalist and guitarist Deron Miller, guitarist Chad I Ginsburg and drummer Jess Margera, the group currently features Ginsburg, Margera and bassist Matt Deis, who have also performed with frontman Daniel Davies twice since Miller's departure in 2011. Closely linked to the CKY Crew, featuring Margera's brother Bam, the band found initial recognition through its musical contributions to the CKY video series and the TV series Jackass.
The CKY video series were a series of videos produced by Bam Margera and Brandon DiCamillo and other residents of West Chester, Pennsylvania.
CKVR-DT, virtual channel 3 (VHF digital channel 10), is the flagship station of the CTV Two television system located in Barrie, Ontario, Canada.
CKMI-DT, UHF channel 15, is a Global owned-and-operated television station located in Montreal, Quebec, Canada.
CKGM (branded as TSN Radio 690) is an English language AM radio station in Montreal, owned by Bell Media Radio.
CKUA is a Canadian radio station. Originally located at the University of Alberta in Edmonton (hence the UA of the call letters), CKUA was the first public broadcaster in Canada.
CKAC is a French-language Canadian radio station located in Montreal, Quebec. Owned by Cogeco, the station operates as a commercial traffic information service branded as Radio Circulation 730. Its studios are located at Place Bonaventure in Downtown Montreal, and its transmitter is located in Saint-Joseph-du-Lac.
CKVU-DT, virtual channel 10 (UHF digital channel 33), is a City owned-and-operated television station located in Vancouver, British Columbia, Canada.
CKY-DT, VHF channel 7, is a CTV owned-and-operated television station located in Winnipeg, Manitoba, Canada.