| Mark Stewart | |
| Position: | Catcher |
| Bats: | Left |
| Throws: | Right |
| Birth Date: | 14 October 1889 |
| Birth Place: | Whitlock, Tennessee |
| Death Place: | Memphis, Tennessee |
| Debutleague: | MLB |
| Debutdate: | October 4 |
| Debutyear: | 1913 |
| Debutteam: | Cincinnati Reds |
| Finalleague: | MLB |
| Finaldate: | October 4 |
| Finalyear: | 1913 |
| Finalteam: | Cincinnati Reds |
| Statleague: | MLB |
| Stat1label: | Games played |
| Stat1value: | 1 |
| Stat2label: | At bats |
| Stat2value: | 1 |
| Stat3label: | Hits |
| Stat3value: | 0 |
| Teams: | |
Mark Stewart (October 14, 1889 – January 17, 1932), nicknamed "Big Stick", was a Major League Baseball catcher who played with the Cincinnati Reds in . He played only one game, and went hitless in one at bat.