|Irish name||Tomás Ó Dufaigh|
|Born||4 May 1894
Lorrha, County Tipperary, Ireland
Duffy made his first appearance for the team during the 1923 championship and was a regular member of the starting fifteen until his retirement after the 1927 championship. During that time he won one All-Ireland medal and two Munster medals.
At club level Duffy enjoyed a lengthy career with Lorrha-Dorrha.