| Doc Landis | |
| Position: | Pitcher/Outfielder |
| Bats: | Right |
| Throws: | Unknown |
| Birth Date: | August 16, 1854 |
| Birth Place: | Philadelphia, Pennsylvania, U.S. |
| Death Date: | unknown |
| Death Place: | unknown |
| Debutleague: | MLB |
| Debutdate: | May 2 |
| Debutyear: | 1882 |
| Debutteam: | Philadelphia Athletics |
| Finalleague: | MLB |
| Finaldate: | September 30 |
| Finalyear: | 1882 |
| Finalteam: | Baltimore Orioles |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 17–28 |
| Stat2label: | Earned run average |
| Stat2value: | 3.32 |
| Stat3label: | Strikeouts |
| Stat3value: | 75 |
| Teams: |
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Samuel H. "Doc" Landis (August 16, 1854 – unknown) was a Major League Baseball player who played pitcher in .
Landis would play for the Philadelphia Athletics and Baltimore Orioles. He was married to Mary Ida Weidner on August 1, 1883, and lived for a time in Reading, Pennsylvania where he continued to play baseball. They had two children together, Mary C. Landis (Allgier) and Floyd Wesley Landis. Doc and Mary Ida would divorce around 1890. After baseball he was employed as a railroad foreman
Doc's son Floyd was also a baseball player and an actor in vaudeville, using the stage name of Patsy Flanagan.