| Billy Gleason | |
| Position: | Second baseman |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 6 September 1894 |
| Birth Place: | Chicago |
| Death Place: | Holyoke, Massachusetts |
| Debutleague: | MLB |
| Debutdate: | September 25 |
| Debutteam: | Pittsburgh Pirates |
| Finalleague: | MLB |
| Finaldate: | June 8 |
| Finalteam: | St. Louis Browns |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .220 |
| Stat2label: | Home runs |
| Stat2value: | 0 |
| Stat3label: | Runs batted in |
| Stat3value: | 8 |
| Teams: | |
William Patrick Gleason (September 6, 1894 – January 9, 1957) was a Major League Baseball second baseman who played with the Pittsburgh Pirates in and and the St. Louis Browns in .