CKSO-FM

CKSO is the former call sign of two radio stations and a television station in Greater Sudbury, Ontario, Canada, as well as the current call sign of a radio station in the city which has no affiliation with any of the older stations.

The current CKSO is a Christian music station, which broadcasts at 101.1 on the FM dial.

The CKSO call letters were chosen because of their historic significance in the Sudbury area. The following stations in Sudbury previously used the CKSO call letters:
* CJRQ was CKSO-AM from 1935 to 1990,
* CIGM was CKSO-FM from 1965 to 1977,
* CICI was CKSO-TV, Canada's first privately owned television station, from 1953 to 1971.

Each of those stations' histories with the call letters is discussed in more depth on their pages. After 1990, the CKSO call letters did not exist in the Sudbury market until the current CKSO debuted in 2003.

A road in the southernmost portion of Sudbury is named CKSO Road, because the original CKSO's transmitters were located there.