| Jack Brewer | |
| Position: | Pitcher |
| Birth Date: | 21 April 1918 |
| Birth Place: | Los Angeles, California |
| Death Place: | Sun City, California |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | MLB |
| Debutdate: | July 15 |
| Debutyear: | 1944 |
| Debutteam: | New York Giants |
| Finalleague: | MLB |
| Finaldate: | April 18 |
| Finalyear: | 1946 |
| Finalteam: | New York Giants |
| Stat2label: | Earned run average |
| Stat2value: | 4.36 |
| Stat3label: | Strikeouts |
| Stat3value: | 73 |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 9–10 |
| Teams: |
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Jack Herndon "Buddy" Brewer (April 21, 1918 – November 30, 2003) was a pitcher in Major League Baseball who played from 1944 through 1946 for the New York Giants. Listed at, 170lb, Brewer threw and batted right-handed. He attended the University of Southern California.
In a three-season career, Brewer posted a 9–10 record with 73 strikeouts and a 4.36 ERA in 43 appearances, including 28 starts, 10 complete games, and 216 innings of work.