| Bill Cahill | |
| Number: | 22 |
| Position: | Defensive back |
| Birth Date: | 5 May 1951 |
| Birth Place: | Bellevue, Washington, U.S. |
| Height Ft: | 5 |
| Height In: | 11 |
| Weight Lbs: | 180 |
| High School: | Bellevue (WA) |
| College: | Washington |
| Draftyear: | 1973 |
| Draftround: | 7 |
| Draftpick: | 158 |
| Teams: | |
| Highlights: | |
| Pfr: | CahiBi20 |
William Blackburn Cahill (born May 5, 1951) is an American former professional football player who played two seasons in the National Football League (NFL) with the Buffalo Bills. He appeared in 19 games, from 1973 to 1974, mostly on
Born and raised in Bellevue, Washington, a suburb east of Seattle, Cahill graduated from Bellevue High School in 1969 and played college football at the University of Washington in Seattle under head coach In his senior season in 1972, he was co-captain with quarterback and he was selected in the seventh round of the 1973 NFL draft by the New Orleans Saints.
After football, Cahill worked in production management for Boeing in the Seattle area.