Hart is the third child of wrestling promoter Stu Hart and his wife Helen, thus he is the younger brother of Smith and Bruce and the older brother of Wayne, Dean, Ellie, Georgia, Bret, Ross, Alison, Diana and Owen Hart. He is of Greek descent through his maternal grandmother and Irish through his maternal grandfather. His father was mainly of Scots-Irish descent but also had Scottish and English ancestry. Hart is a dual citizen of Canada and the United States. Before becoming a wrestler, Keith Hart earned a degree in teaching.
Amateur wrestling
Hart had a lot of experience in amateur wrestling during his youth, something he did mostly to please his father. Competing for the University of Saskatchewan, he earned a bronze medal at the west division championships in 1974.
Professional wrestling career
Stampede Wrestling
Hart trained under his father and began wrestling on June 1, 1973 in his father's promotion, Stampede Wrestling, facing Lindy Calder in his debut match. He spent much of his career as a tag team wrestler, teaming with wrestlers such as his brother Bret, with whom he won the Stampede International Tag Team Championship four times. He feuded with wrestlers such as Dick Steinborn, Dynamite Kid, Herbert Gallant, K J Anderssen, Mr. Hito, and Mr. Sakurada. As a singles wrestler he held the British Commonwealth Mid Heavyweight title. In addition to wrestling in Canada, Hart performed in Germany, Japan and made infrequent appearances in the United States of America. At one point, Dave Meltzer referred to Hart as one of the bestjobbers in wrestling.
World Wrestling Federation
As part of the feud between Bret and Jerry Lawler, at the 1993 Survivor Series Bret and his brothers Keith, Bruce and Owen faced Shawn Michaels and his three masked knights. Though Owen was eliminated and Keith's shoulder was injured by a prolonged assault at the hands of Michaels, the Hart brothers were victorious.
Return to Stampede Wrestling
In the 1990s, Hart worked as a trainer in the Hart Dungeon. He eventually retired in 1995 to become a full-time firefighter, although he briefly came out of retirement in 1999 when Stampede Wrestling was reopened by his brothers Bruce and Ross Hart. Hart became a tag team champion with Chris Benoit.
After wrestling
In the late 1970s, at the urging of his brother-in-law, B.J. Annis, Hart passed a test and was accepted into the Calgary Fire Department. As a result, he largely reduced his wrestling commitments. Hart would work for Annis until 2007, when he retired from firefighting after 26 years and began working as a substitute teacher. He is known to teach in Calgary and Okotoks.
Other media
Hart has appeared on several wrestling documentaries, including the 1998 documentary Wrestling with Shadows and 2010's which are both about his younger brother Bret. Hart was also present on the stage together with all his living siblings when his father Stu Hart was posthumously inducted into the WWE Hall of Fame.
Personal life
In 1994 Hart and his first wife won $100,000 in a lottery. He spent some of the money on an unsuccessful campaign to get elected to provincial office.
Family
Hart has three sons with his ex-wife Leslie, Stewart Hart II, Conor Hart and Brock Hart. The couple divorced in 1995. Conor pursued amateur wrestling at the University of Calgary and coaches a local high school team. His other son Stewart has also pursued amateur wrestling and has won a medal in his school championship but does not wish to work with pro wrestling. In 2002 Keith married for the second time to his long-time girlfriend Joan.
Wrestling related
Following the death of Stu Hart on October 16, 2003, the Hart family sold the Hart mansion. On August 14, 2004 Hart organised a fundraiser, held within the mansion, for the Stu Hart Amateur Sport Foundation.