Frank Joseph Kush (January 20, 1929 - June 22, 2017) was an American football player and coach. He served as the head coach at Arizona State University from 1958 to 1979, compiling a record of 176-54-1. Kush was also the head coach of the Canadian Football League's Hamilton Tiger-Cats in 1981, the National Football League's Baltimore/Indianapolis Colts from 1982 to 1984, and the Arizona Outlaws of the United States Football League in 1985. He was inducted into the College Football Hall of Fame as a coach in 1995.

Kush moved to the Canadian Football League the following year, serving as head coach of the Hamilton Tiger-Cats. In his only season with the team, he led his squad to an 11-4-1 mark and a berth in the CFL Eastern Conference championship game. Controversy followed him to the CFL, however, with Kush quarreling with some Ti-Cats players when he attempted to ban the common practice of taping shoes and ankles.  That performance helped Kush return to the United States when the Baltimore Colts hired him in 1982. During the strike-shortened season, the Colts had the dubious record of being the first NFL team since the 1976 Tampa Bay Buccaneers to not win a game during the season, finishing 0-8-1. John Elway's refusal to play for the Colts after they chose him first overall in the 1983 draft has been attributed, in part, to his desire not to play for Kush.  The Colts improved the following year with a 7-9 record, then moved to Indianapolis during the off-season, much to the disappointment of Kush who had wanted the team to negotiate a move to Phoenix. After just four wins in fifteen games in 1984, Kush quit on December 13, just days before the final game of the season. Citing a desire to be closer to friends and family, Kush accepted a three-year contract with the United States Football League's Arizona Outlaws.  However, the league folded in August 1986, with Kush then living off his personal services contract with Outlaws owner Bill Tatham by offering assistance to beginners in a local youth football league, joking, "I'm the highest-paid Pop Warner coach in the country." Kush also used his disciplinarian image to serve as director of the Arizona Boys Ranch, a facility used to reform juvenile offenders.

How bad did the controversy get?
That performance helped Kush return to the United States when the Baltimore Colts hired him in 1982.