| Tom Long | |
| Birth Date: | 1 June 1890 |
| Birth Place: | Coffeeville, Alabama, U.S. |
| Death Place: | Mobile, Alabama, U.S. |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | MLB |
| Debutdate: | September 11 |
| Debutyear: | 1911 |
| Debutteam: | Washington Senators |
| Finalleague: | MLB |
| Finaldate: | September 30 |
| Finalyear: | 1917 |
| Finalteam: | St. Louis Cardinals |
| Statleague: | MLB |
| Stat1value: | .269 |
| Stat2value: | 6 |
| Stat3value: | 140 |
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Thomas Augustus Long (June 1, 1890 – June 23, 1972), was a professional baseball outfielder in the Major Leagues from –. He played for the Washington Senators and St. Louis Cardinals.
In 418 games over five seasons, Long posted a .269 batting average (401-for-1489) with 148 runs, 6 home runs and 140 RBI. He finished his career with a .928 fielding percentage at all three outfield positions. In, he led the National League in triples with 25.