| Position: | End, back |
| Birth Date: | 25 March 1898 |
| Birth Place: | Michigan |
| Height Ft: | 5 |
| Height In: | 10 |
| Weight Lbs: | 180 |
| High School: | Michigan Military Academy |
| College: | Phillips |
| Teams: |
|
| Statlabel1: | Games |
| Statvalue1: | 9 |
| Pfr: | ONeiCh20 |
Charles Leo O'Neil (March 25, 1898 – June 20, 1928) was an American football player. A native of Michigan, he played professional football as an end and back for the Evansville Crimson Giants and Toledo Maroons in the National Football League (NFL). He appeared in nine NFL games, six as a starter, from 1921 to 1923.[1]