| Mike Mattimore | |
| Position: | Pitcher/Outfielder |
| Birth Date: | August 1858 |
| Birth Place: | North Bend, Pennsylvania |
| Death Place: | Butte, Montana |
| Bats: | Left |
| Throws: | Left |
| Debutleague: | MLB |
| Debutdate: | May 3 |
| Debutyear: | 1887 |
| Debutteam: | New York Giants |
| Finalleague: | MLB |
| Finaldate: | July 21 |
| Finalyear: | 1890 |
| Finalteam: | Brooklyn Gladiators |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 26-27 |
| Stat2label: | Earned run average |
| Stat2value: | 3.83 |
| Stat3label: | Strikeouts |
| Stat3value: | 132 |
| Teams: | |
Michael Joseph Mattimore (1858–1931) was a 19th-century Major League Baseball player. He played for several teams in the National League and American Association between 1887 and 1890.