American collegiate women's basketball coach at the University of Tennessee (Tennessee, University of) (1974– ) who was the winningest coach in the history of National Collegiate Athletic Association (NCAA) basketball.

Head grew up on a dairy farm, where she developed the toughness that would become her trademark. She first played basketball in a hayloft, and her aggressive and instinctive play at the University of Tennessee at Martin (B.S., 1974; M.S., 1975) earned her spots on national teams. In 1975 she won gold at the Pan-American Games and the following year overcame a serious knee injury to cocaptain the U.S. Olympic team to a silver medal in Montreal. Soon afterward she retired as a player to concentrate on coaching.

Named head coach of the Lady Vols at the University of Tennessee at Knoxville in 1974, she posted a 16–8 record in her inaugural season. (In 1980 she married R.B. Summitt; the couple divorced in 2008.) Driven and uncompromising, Summitt demanded the best from her players and was known for her strenuous practices and the legendary “look” that would send athletes for cover. In 1987, months after earning her 300th win, she guided the Lady Vols to their first NCAA championship. With Summitt at the helm, the team went on to claim seven more titles (1989, 1991, 1996–98, and 2007–08). In 1996 Summitt notched her 600th victory, becoming only the second woman to tally that many wins on the court. Two years later she led Tennessee to an unprecedented third consecutive NCAA championship, capping a perfect season (39–0). The title came just days after she received the Associated Press's Coach-of-the-Year award. In 2005 she earned her 880th victory, breaking Dean Smith (Smith, Dean)'s record. Four years later she became the first NCAA basketball coach to register 1,000 career wins.

In addition to collegiate basketball, Summitt also coached on the international level, leading the U.S. women's team to gold at the 1984 Olympics in Los Angeles. A noted motivator, she released two self-help books, Reach for the Summit and Raise the Roof (each with Sally Jenkins), in 1998. Summitt was the recipient of numerous honours, and in 2000 she was named Naismith College Coach of the Century. That year she was also inducted into the Naismith Memorial Basketball Hall of Fame.