| Denis O'Callaghan | |
| Fullname: | Denis Aloysius O'Callaghan |
| Birth Date: | May 29, 1939 |
| Birth Place: | Nyngan, New South Wales |
| Death Place: | Tamworth, New South Wales |
| Retired: | yes |
| Position: | , |
| Club1: | St. George |
| Year1start: | 1968 |
| Year1end: | 69 |
| Appearances1: | 15 |
| Tries1: | 3 |
| Goals1: | 0 |
| Fieldgoals1: | 0 |
| Points1: | 9 |
| Source: | [1] |
| Updated: | 25 September 2019 |
Denis O'Callaghan was an Australian rugby league footballer who played in the 1960s. He started out in rugby union and was on the 1966–67 tour of Britain, Ireland and France with the Wallabies.[2]
O'Callagan played two seasons at St. George between 1968 and 1969. He was a utility player that often switched from the back row to the centres during his career.[3]
O'Callaghan died on May 22, 2017, at Tamworth, New South Wales.[4]