| Jack O'Connor | |
| Fullname: | John William O'Connor |
| Birth Date: | 8 November 1900 |
| Birth Place: | Collingwood, Victoria |
| Death Place: | Heidelberg West, Victoria |
| Originalteam: | Northcote |
| Height: | 179 cm |
| Weight: | 74 kg |
| Statsend: | 1918 |
| Years1: | 1918 |
| Games Goals1: | 3 (1) |
John William O'Connor (8 November 1900 - 23 February 1983) was an Australian rules footballer who played with Collingwood in the Victorian Football League (VFL).[1]