The league announced Monday that all 12 university presidents who make up the board agreed to extended Scott's contract.
Since taking over on July 1, 2009, Scott has overseen the league's expansion with the addition of Utah and Colorado. He also negotiated a landmark 12-year television contract this summer with Fox and ESPN worth about $3 billion and helped created the Pac-12 Network and Pac-12 Digital Network.
The 47-year-old Scott is a former chairman of the Women's Tennis Association as well as a former player and executive with the men's ATP Tour.
He is the sixth commissioner of the league.