| Jim Hallahan Sr. | |
| Fullname: | James Richard Hallahan |
| Birth Date: | 4 June 1878 |
| Birth Place: | Rutherglen, Victoria |
| Death Place: | Sunshine, Victoria |
| Originalteam: | Rutherglen |
| Height: | 176 cm |
| Weight: | 72 kg |
| Statsend: | 1904 |
| Years1: | 1904 |
| Club1: | St Kilda |
| Games Goals1: | 2 (1) |
James Richard Hallahan (4 June 1878 – 1 July 1964) was an Australian rules footballer with the St Kilda Football Club in the Victorian Football League.
Hallahan played 2 games for St Kilda[1] in 1904.
Hallahan's son Jim played with Fitzroy in the 1940s and his son Tom also played with St Kilda.
His great grandson Mitch Hallahan debuted for in 2014.