CJTR was a radio station which operated at 1140 kHz on the AM band in Trois-Rivières, Quebec, Canada.
CKTR originally began broadcasting on February 6, 1954 on a frequency of 1350 kHz with 1,000 watts of power (single day and night directional pattern).
Its directional parameters were to protect Class-A clear-channel stations WRVA in Richmond, Virginia and XEMR-AM in Apodaca, Nuevo León, Mexico at night.
As a result, they closed CJTR, along with CJMS Montreal, CJRP Quebec City, CJMT Chicoutimi, CJRS Sherbrooke, and CKCH Hull.
All six stations left the air on this date and the licenses were turned in to the CRTC, which revoked the licences on November 2, 1994.