Z103

Z103 is the on-air brand name of several radio stations in Canada and the United States. Stations using this identifier broadcast within the 103.1 to 103.9 range on FM radio, and usually (but not always) have the letter Z in their call sign as the final letter.

Although the letter Z is normally pronounced "zed" in Canada, Canadian "Z103" stations usually use the American "zee" pronunciation as it rhymes with "three".

Stations using this identifier include:

; Canada
* CIDC-FM, in Orangeville, Ontario
* CKHZ-FM, in Halifax, Nova Scotia
* Note: CHNO-FM, in Sudbury, Ontario was formerly called Z103 from February 2000-January 1, 2006.

; United States
* KFTZ, in Idaho Falls, Idaho
* WSMZ, in Johnstown, Ohio
* WZVA, in Marion, Virginia
* WXZZ, in Lexington, Kentucky
* WSMA, in Anchorage, Alaska