| John Butler | |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 26 July 1879 |
| Birth Place: | Boston, Massachusetts |
| Death Place: | Boston, Massachusetts |
| Debutleague: | MLB |
| Debutdate: | September 28 |
| Debutyear: | 1901 |
| Debutteam: | Milwaukee Brewers |
| Finalleague: | MLB |
| Finaldate: | June 14 |
| Finalyear: | 1907 |
| Finalteam: | Brooklyn Superbas |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .134 |
| Stat2label: | Home runs |
| Stat2value: | 0 |
| Stat3label: | Runs batted in |
| Stat3value: | 3 |
| Teams: |
|
John Albert Butler (a.k.a. Frederick King) (July 26, 1879 in Boston, Massachusetts – February 2, 1950) was a professional baseball player who played catcher from 1901 to 1907. He attended Fordham University and was later a coach for the Chicago White Sox.