| John Cavanaugh | |
| Position: | Third baseman |
| Birth Date: | June 5, 1900 |
| Birth Place: | Reading, Pennsylvania, U.S. |
| Death Place: | New Brunswick, New Jersey, U.S. |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | MLB |
| Debutdate: | July 7 |
| Debutyear: | 1919 |
| Debutteam: | Philadelphia Phillies |
| Finalleague: | MLB |
| Finaldate: | July 7 |
| Finalyear: | 1919 |
| Finalteam: | Philadelphia Phillies |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .000 |
| Stat2label: | At-bats |
| Stat2value: | 1 |
| Teams: |
|
John Joseph Cavanaugh (June 5, 1900 – January 14, 1961) was an American Major League Baseball third baseman. He played in one game for the Philadelphia Phillies on July 7 during the 1919 Philadelphia Phillies season. He was the first player born in the 1900s to appear in a Major League Baseball game.[1]
Following his one game played during the 1919 season as a 19-year-old, Cavanaugh played in parts of 3 minor league seasons. He spent 1921 and 1922 with the Reading Aces of the International League and 1924 with the Wilkes-Barre Barons of the New York-Penn League.[2]