Osbern Putnam "Diddie" Willson (January 17, 1911 – January 19, 1961) was an American football guard who played three seasons with the Philadelphia Eagles of the National Football League (NFL). He played college football at the University of Pennsylvania and attended Oakfield High School in Oakfield, New York.
College career
Willson lettered in football for the Penn Quakers from 1930 to 1932. He also played water polo and lacrosse for the Quakers.
Professional career
Willson played in 28 games, starting 22, for the NFL's Philadelphia Eagles from 1933 to 1935.