| Jack Cronk | |
| Fullname: | John Edward James Cronk |
| Birth Date: | 10 September 1890 |
| Birth Place: | Richmond, Victoria |
| Death Place: | Bonbeach, Victoria |
| Originalteam: | Balmain |
| Statsend: | 1917 |
| Years1: | 1914–17 |
| Games Goals1: | 23 (11) |
John Edward James Cronk (10 September 1890 – 26 September 1964) was an Australian rules footballer who played with Richmond in the Victorian Football League (VFL).[1]