Thomas Duffy
Thomas or Tom Duffy may refer to:
- Thomas Duffy (VC), Irish recipient of the Victoria Cross in 1857
- Thomas A. Duffy, New York politician and judge
- Thomas C. Duffy, American composer and conductor of the Yale University Concert Band
- Thomas F. Duffy, American actor
- Thomas J. Duffy, American designer/craftsman
- Thomas T. Duffy, American politician
- Tom Duffy (hurler), Irish hurler
- Tom Duffy (rugby league), Australian rugby league
- Tom Duffy (ringmaster), Irish circus performer and ringmaster
- *Tom Duffy's Circus