David Sean Fizdale (born June 16, 1974) is an American professional basketball coach who is an assistant coach for the Phoenix Suns of the National Basketball Association (NBA). He previously was an associate general manager for the Utah Jazz, an assistant coach for the Los Angeles Lakers, the head coach for the New York Knicks and Memphis Grizzlies, and was an assistant coach for the Atlanta Hawks, Golden State Warriors and the Miami Heat. He won two championships with the Heat in 2012 and 2013.
On May 29, 2016, Fizdale was named as the head coach of the Memphis Grizzlies. He led the Grizzlies to a 43–39 record in the 2016–17 season, reaching the Western Conference playoffs. After a 7–12 start to the 2017–18 season, including eight consecutive losses, and a publicized fourth-quarter benching of Marc Gasol, Fizdale was fired from the team on November 27, 2017.
On May 7, 2018, Fizdale was named as the head coach of the New York Knicks signing a four-year deal with the organization. On December 6, 2019, he was fired by the Knicks after a 4–18 start to their season.
On September 15, 2021, Fizdale was hired by the Los Angeles Lakers as an assistant coach.
On June 29, 2022, Fizdale was hired as the associate general manager for the Utah Jazz.
On June 21, 2023, Fizdale was hired by the Phoenix Suns as an assistant coach.