CKSO-FM was a Christian music station, which broadcast at 101.1 FM in Sudbury, Ontario in the mid-2000s.

On January 26, 2001, David Jackson (OBCI) applied to operate a new English language Christian music FM radio station in Sudbury. The new station would operate at 94.3 MHz (channel 232LP) with an effective radiated power of 50 watts. ^[1] The frequency was later changed to 101.1 MHz (channel 266LP)^[2]

On September 5, 2001, a group led by David Jackson was given approval to operate a new Christian music FM radio station at 101.1 FM.^[3] According to an interview with the community newspaper Northern Life, Jackson chose the CKSO call letters because of their historical significance in the Sudbury area; in addition to CIGM-FM, which was known as CKSO-FM from 1965 to 1977, the call letters were also once used by an AM radio station (now CJRQ) and a television station (now CICI) in the city.^[4][5]

On October 8, 2002, the group asked for and was granted an extension to the deadline to commence operations.^[6] The station began airing test transmissions on December 2, 2002.

Undated, CKSO-FM was branded as 101.1 The Rock.

Although the station's website remained operational until early 2009, the Canadian Communications Foundation website reports that the station left the air in 2006.^[7] The licence, when issued, was to expire on August 31, 2008 — as of that date, however, no renewal application had been filed with the CRTC, and Jackson has not filed an application for a new license as of 2015. The radio station never relaunched.

• CKSO-FM 101.1 Official Site at archive.org (January 2009).
• CKSO-FM at The History of Canadian Broadcasting by the Canadian Communications Foundation
• CKSO-FM in the REC Canadian station database