Dear John is an American sitcom television series that aired on NBC from October 6, 1988 to July 22, 1992. It was originally based on the British sitcom of the same name. It was retitled Dear John USA when it was shown in the United Kingdom. During its four-season run, it was bounced to and from various time periods on Wednesday, Thursday, Friday, and Saturday nights. It moved from its post-Cheers slot on Thursdays to a post-Night Court slot on Wednesdays in 1990.

Dear John is a British sitcom, written by John Sullivan. Two series and a special were broadcast in 1986 and 1987.