William Gordon Kline (June 21, 1882 – after 1942) was an American college football, baseball and basketball coach.

At different times, Kline served as the head coach of the Nebraska Cornhuskers baseball, basketball and football teams, as well as the Florida Gators baseball, basketball and football teams.

[5] The highlight of his season coaching Nebraska came when the Huskers played the Notre Dame Fighting Irish football team to a scoreless tie.

[5] In 1919, Kline was the head football coach at Cotner College in Bethany, Nebraska.

[11] In 1923, he returned to the University of Nebraska, where he became the Cornhuskers basketball coach and compiled a 23–12 record in his two seasons there, finishing third and second in the conference standings.