| John O'Connor | |
| Nationality: | Irish |
| Sport: | Athletics |
| Event: | Triple jump |
| Birth Date: | 1 August 1894 |
| Birth Place: | Killarney |
| Death Place: | Dublin |
John O'Connor (1 August 1894 - 10 October 1977) was an Irish athlete. He competed in the men's triple jump at the 1924 Summer Olympics.[1]