Thomas Clancy
Thomas or Tom Clancy may refer to:
- Thomas K. Clancy, professor of law at the University of Mississippi School of Law
- Thomas Owen Clancy, American academic and historian
- T. Frank Clancy, American politician and businessman
- Tom Clancy (Australian footballer), Australian rules footballer
- Tom Clancy, American author
- Tom Clancy (Canadian football), Canadian football coach and player
- Tom Clancy (Gaelic footballer), Irish Gaelic footballer
- Tom Clancy (rugby union), Irish rugby player
- Tom Clancy (singer), member of the Irish folk singing group The Clancy Brothers