| Jack Brewer | |
| Full Name: | Ernest John Aisne Brewer |
| Nationality: | British |
| Sport: | Athletics |
| Event: | Discus throw |
| Birth Date: | 21 October 1914 |
| Birth Place: | Macclesfield, England |
| Death Place: | Sutton, England |
Jack Brewer (21 October 1914 - 16 July 1993) was a British athlete. He competed in the men's discus throw at the 1948 Summer Olympics.[1]