| Bob Pettit | |
| Position: | Outfielder |
| Bats: | Left |
| Throws: | Right |
| Birth Date: | 19 July 1861 |
| Birth Place: | Williamstown, Massachusetts |
| Death Place: | Derby, Connecticut |
| Debutleague: | MLB |
| Debutdate: | September 3 |
| Debutyear: | 1887 |
| Debutteam: | Chicago White Stockings |
| Finalleague: | MLB |
| Finaldate: | October 4 |
| Finalyear: | 1891 |
| Finalteam: | Milwaukee Brewers |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .240 |
| Stat2label: | Home runs |
| Stat2value: | 7 |
| Stat3label: | Runs batted in |
| Stat3value: | 40 |
| Teams: |
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Robert Henry Pettit (July 19, 1861 in Williamstown, Massachusetts – November 1, 1910 in Derby, Connecticut), was a professional baseball player who played pitcher and outfielder in the Major Leagues from 1887 to 1891. He played for the Chicago White Stockings and Milwaukee Brewers.