CJNR was a radio station which operated at 730 kHz in Blind River, Ontario, Canada.

In late 1957 Thomas C. Nash (owner of Nash Radio & TV Broadcasting Co.) received a licence for an AM station at Blind River, which began operating at 730 kHz on March 1, 1958. ^[1] CJNR would have its transmitter in Blind River, along with studios located in Elliot Lake.^[2] The callsign meaning for CJNR is "Nash Radio & TV Broadcasting Co." or "North Shore".

In the 1960s or early 1970s the owner of CKNR Elliot Lake purchased CJNR. It would become a semi-satellite of CKNR which began broadcasting in 1967. The owner was or would be known as Algonquin Radio-TV Ltd. (CKCY Sault Ste. Marie).

In the mid-1980s Mid-Canada Communications was approved by the CRTC to acquire CJNR from Huron Broadcasting Limited.^[3]

In 1986 CJNR received approval to disaffiliate from the CBC radio network, which is now served by CBCE-FM out of Little Current.^[4] In 1990, the Pelmorex Radio Network received approval to acquire CJNR from Mid-Canada Communications.^[5] In 1996, CJNR and its sister stations CKNR and CKNS were sold to North Channel Broadcasters,^[6] which established the contemporary CKNR-FM and shut down all three AM signals.

• CJNR-AM at The History of Canadian Broadcasting by the Canadian Communications Foundation
• 730CJNR in the REC Canadian station database