Cahill is an Irish surname.
Cahill may also refer to:
Cahill (group), a house music group from Liverpool 21410 Cahill, a minor planet Cahill Expressway, Sydney, Australia Cahill Racing, Indy car racing team Cahill Stadium, Summerside, Prince Edward Island, Canada Cahill U.S. Marshal, 1973 American Western film "Cahill" (Space Ghost Coast to Coast), a television episode Cahill–Keyes projection, a polyhedral map projection
See also Cahill ministry (disambiguation) McCahill, a surname