| Frank Shannon | |
| Position: | Shortstop |
| Bats: | Unknown |
| Throws: | Unknown |
| Birth Date: | 3 December 1873 |
| Birth Place: | San Francisco, California |
| Death Place: | Boston, Massachusetts |
| Debutleague: | MLB |
| Debutdate: | October 1 |
| Debutyear: | 1892 |
| Debutteam: | Washington Senators |
| Finalleague: | MLB |
| Finaldate: | June 20 |
| Finalyear: | 1896 |
| Finalteam: | Louisville Colonels |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .160 |
| Stat2label: | Home runs |
| Stat2value: | 1 |
| Stat3label: | Runs batted in |
| Stat3value: | 17 |
| Teams: |
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John Francis Shannon (December 3, 1873 – February 27, 1934) was a Major League Baseball shortstop. He played in one game for the Washington Senators of the National League on October 1, 1892, and later played in 31 games for the Louisville Colonels in 1896. His minor league career stretched from 1893 to 1910, mostly in the New England League or the Eastern League.