| Collins Hagler | |
| Birth Date: | 15 May 1935 |
| Birth Place: | Washington, D.C., U.S. |
| Import: | yes |
| Position1: | Halfback |
| Height Ft: | 5 |
| Height In: | 9 |
| Weight Lb: | 163 |
| Playing Years1: | - |
| Playing Team1: | Saskatchewan Roughriders |
| Playing Team2: | Ottawa Rough Riders |
| Career Highlights: |
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Collins "Mike" Hagler (born March 15, 1935) was a Canadian football player who played for the Saskatchewan Roughriders and Ottawa Rough Riders. He won the Grey Cup with Ottawa in 1960.[1] He played college football for the University of Iowa.