| Jack Sexton | |
| Fullname: | Jack Ettwell George Sexton |
| Birth Date: | 27 February 1907 |
| Birth Place: | Adelaide, South Australia |
| Death Place: | Adelaide, South Australia |
| Originalteam: | Glenelg (SANFL) |
| Height: | 180 cm |
| Weight: | 73 kg |
| Position: | Centre |
| Statsend: | 1935 |
| Years1: | 1925–29 |
| Club1: | Glenelg (SANFL) |
| Games Goals1: | 47 (?) |
| Years2: | 1930–31 |
| Club2: | West Adelaide (SANFL) |
| Games Goals2: | 19 (2) |
| Years3: | 1932–34 |
| Club3: | (VFL) |
| Games Goals3: | 29 (10) |
| Years4: | 1935 |
| Club4: | Norwood (SANFL) |
| Games Goals4: | 6 (0) |
| Careerhighlights: |
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Jack Ettwell George Sexton (27 February 1907– 26 October 1935) was an Australian rules footballer who played in the South Australian National Football League (SANFL) and for in the Victorian Football League (VFL).
Sexton was a centreman and started his career in 1925 with Glenelg. In 1930, he crossed to West Adelaide after a dispute over his salary. He won a Magarey Medal in 1931 and in the following season, he moved to Victoria and joined Fitzroy. He captained Fitzroy in 1932 and 1933 and played a total of 29 VFL games before returning to South Australia in 1935. Now playing with Norwood as captain-coach, Sexton starting suffering from pleurisy and was forced to resign just six games into the season. He finished with a total of 101 senior games and in October that year, he died from his illness.