The Hart Foundation was a collective name used by various stables in the World Wrestling Federation (WWF). They are generally associated with the Hart wrestling family of legendary Stu Hart from Canada.

According to Bret Hart, the tag team originated after Bret turned down the "Cowboy" Bret Hart gimmick he was given, claiming that he didn't really take a liking to it. He then suggested to WWF management that he would much prefer to be teamed up with Jim Neidhart. Management first laughed at the idea, claiming that Bret didn't have the heel look that was appropriate, but months later just as Bret was about to quit, he was given what he wanted: he was allowed to turn heel, and was partnered up with Neidhart and Jimmy to form the Hart Foundation.

The Hart Foundation is regarded as one of the best tag teams during wrestling's 1980s heyday. What set the Harts apart from their contemporaries was their respective wrestling styles - Neidhart was more of a brawler/power wrestler, whereas Bret on the other hand was a more agile, sound and polished technician who used ring psychology to his advantage. This characteristic and uniqueness in the Hart Foundation was at that time rare yet successful, leading to two reigns as WWF Tag Team Champions.

The Hart Foundation were involved in perhaps some of wrestling's greatest tag-team matches of all time, and they were constantly involved in feuds with various other teams including the British Bulldogs, the Killer Bees, The Rockers, and the Rougeau Brothers.