William Bader Leckonby (September 16, 1917 – October 22, 2007) was an American football player, coach of football and golf, and college athletics administrator.

Leckonby served as the head football coach at Lehigh University from 1946 to 1961, compiling a record of 85–53–5.

His 85 wins are the most of any coach in the history of the Lehigh Mountain Hawks football program, and his tenure of 16 seasons as head coach is the longest in team history.

Lecknoby was also the head golf coach at Lehigh, tallying a mark of 161–62, and he served as the school's athletic director from 1962 to 1984.

[1] # denotes interim athletic director This biographical article relating to a college football coach first appointed in the 1940s is a stub.