| Lou Schettler | |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 12 June 1886 |
| Birth Place: | Pittsburgh, Pennsylvania |
| Death Place: | Youngstown, Ohio |
| Debutleague: | MLB |
| Debutdate: | April 25 |
| Debutyear: | 1910 |
| Debutteam: | Philadelphia Phillies |
| Finalleague: | MLB |
| Finaldate: | October 1 |
| Finalyear: | 1910 |
| Finalteam: | Philadelphia Phillies |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 2–6 |
| Stat2label: | Earned run average |
| Stat2value: | 3.20 |
| Stat3label: | Strikeouts |
| Stat3value: | 62 |
| Teams: |
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Louis Martin Schettler (June 12, 1886 – May 1, 1960) was a pitcher in Major League Baseball. He pitched for the 1910 Philadelphia Phillies.