The Arizona State Sun Devils are the athletic teams that represent Arizona State University. ASU has nine men's and eleven women's varsity teams competing at the National Collegiate Athletic Association (NCAA) Division I level as a member of the Pac-12 Conference. The mascot was adopted in 1946; earlier nicknames were the Normals and later, the Bulldogs. The Sun Devil mascot, Sparky, was designed by former Disney illustrator Bert Anthony. ASU's chief rival is the University of Arizona Wildcats, and both universities' athletics departments compete against each other in the Territorial Cup Series.

Arizona State University is a public research university in the Phoenix metropolitan area. Founded in 1885 as Territorial Normal School by the 13th Arizona Territorial Legislature, ASU is now one of the largest public universities by enrollment in the United States. It was one of about 180 "normal schools" founded in the late 19th century to train teachers for the rapidly growing public common schools. Some closed, but most steadily expanded their role and became state colleges in the early 20th century, then state universities in the late 20th century.