| Mike Mansell | |
| Position: | Outfielder |
| Bats: | Left |
| Throws: | Unknown |
| Birth Date: | 15 January 1858 |
| Birth Place: | Auburn, New York, U.S. |
| Death Place: | Auburn, New York, U.S. |
| Debutleague: | MLB |
| Debutdate: | May 1 |
| Debutyear: | 1879 |
| Debutteam: | Syracuse Stars |
| Finalleague: | MLB |
| Finaldate: | October 15 |
| Finalyear: | 1884 |
| Finalteam: | Richmond Virginians |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .239 |
| Stat2label: | Hits |
| Stat2value: | 352 |
| Stat3label: | Runs scored |
| Stat3value: | 237 |
| Teams: |
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Michael R. Mansell (January 15, 1858 – December 4, 1902) was an American professional baseball outfielder in the Major Leagues from 1879 to 1884. He played for the Syracuse Stars, Cincinnati Stars, Pittsburgh Alleghenys, Philadelphia Athletics, and Richmond Virginians. His brothers John and Tom also played professional baseball.