| Bo Hanley | |
| Birth Date: | 10 July 1891 |
| Birth Place: | United States |
| Death Place: | Milwaukee, Wisconsin, U.S. |
| Height Ft: | 5 |
| Height In: | 7 |
| Weight Lbs: | 150 |
| Position1: | Wingback |
| College: | Marquette |
| Coaching Years1: | 1914–1915 |
| Coaching Team1: | Colorado Mines |
| Coaching Years2: | 1924 |
| Coaching Team2: | Kenosha Maroons |
William J. "Bo" Hanley (July 10, 1891 – November 23, 1954) was an American football player and coach. He served a head coach for the Kenosha Maroons of the National Football League (NFL) for one season in 1924. Hanley played college football at Marquette University, where he was nicknamed the "Marquette Marvel".
In 1911, Hanley played baseball for one season for the Aurora Blues of the Wisconsin-Illinois League.[1]
In 1920, Hanley's younger brother, Cornelius "Pat" Hanley played for the Detroit Heralds. Pat also played college football at Marquette.
Hanley was born on July 10, 1891. He died in Milwaukee, Wisconsin on November 23, 1954.[2]
Hanley served as the head football coach at the Colorado School of Mines in Golden, Colorado from 1914 to 1915.[3]