Eugene A. "Gene" Ronzani (March 28, 1909 – September 12, 1975) was a professional football player and coach in the National Football League. He was the second head coach of the Green Bay Packers, from 1950 to 1953, and resigned with two games remaining in the 1953 season. A three-sport athlete at Marquette University, Ronzani earned nine varsity letters in college and was a backfield player in the NFL with the Chicago Bears for six seasons in the 1930s and two more in the mid-1940s.