Tom Cahill
Tom or Thomas Cahill may refer to:
- Tom Cahill (American football), American football coach at Army, 1966–1973
- Tom Cahill (Australian politician), member of New South Wales Legislative Assembly
- Tom Cahill (baseball), American Major League Baseball player
- Tom Cahill (footballer, born 1931), Scottish footballer
- Tom Cahill (footballer, born 1986), English footballer
- Tom Cahill (playwright), Canadian playwright, songwriter, and television producer
- Thomas Cahill, American scholar and writer
- Thomas Cahill (soccer), American athlete, coach and businessman; a founding father of American soccer
- Thomas J. Cahill, chief of police in San Francisco, California, 1958–1970
- Thomas Cahill (bishop), Australian archbishop of Canberra – Goulburn