| Jack Gaudion | |
| Fullname: | John Donald Gaudion |
| Birth Date: | 23 July 1910 |
| Birth Place: | Footscray, Victoria |
| Originalteam: | Yarraville |
| Height: | 180 cm |
| Weight: | 85 kg |
| Statsend: | 1936 |
| Years1: | 1933, 1935 |
| Games Goals1: | 3 (0) |
| Years2: | 1936 |
| Games Goals2: | 4 (2) |
| Games Goalstotal: | 7 (2) |
John Donald Gaudion (23 July 1910 – 24 August 1993) was an Australian rules footballer who played with North Melbourne and Geelong in the Victorian Football League (VFL).[1]
The son of John Richard Gaudion (1878–1914),[2] and Margaret Robina Parkhill Gaudion (1884–1964), née Cunningham,[3] John Donald Gaudion was born at Footscray, Victoria on 23 July 1910.
He was the uncle of North Melbourne player Michael Gaudion (1938–2021), the brother of North Melbourne footballer Charles Henry "Charlie" Gaudion (1904–1979), and the nephew of Collingwood footballer Francis Charles "Frank" Gaudion (1882–1952).