John Gilbert (14 September 1930 – 14 September 1998) was a Canadian radio broadcaster.
Gilbert was a broadcaster with CJCH Halifax until Toronto's 1050 CHUM radio announced in February 1971 that he would succeed Larry Solway as host of the talk show Speak Your Mind. In 1973, he became the most successful radio talk show host in Canada with 120 000 measured listeners, more than Vancouver media legend Jack Webster.
In 1980, Gilbert hosted Night Talk, a weekday late night program planned as a national talk show. However, the CRTC ordered that the network of stations broadcasting the programme be cut back to the six stations then owned by Maclean-Hunter: CFCN Calgary, CFCO Chatham, CHNS Halifax, CKGL-FM Kitchener, CKOY Ottawa and CKEY Toronto.