Thomas Clancy 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 Tom Clancy (Australian footballer) (1887–1957), Australian rules footballer Tom Clancy (Canadian football) (1872–1938), Canadian football coach and player Tom Clancy (singer) (1924–1990), member of the Irish folk singing group The Clancy Brothers Tom Clancy (1947–2013), American author Tom Clancy (Gaelic footballer) (born 1992), Irish Gaelic footballer