Callahan may refer to: Callahan (surname) Father Callahan, in Stephen King novels Harry Callahan (character), in Dirty Harry movies Jack Callahan (Neighbours)
Steven Callahan (born 6 February 1952) is an American author, naval architect, inventor, and sailor. In 1981, he survived for 76 days adrift on the Atlantic
Bill Callahan (born June 3, 1966) is an American singer-songwriter and guitarist who has also recorded and performed under the band name Smog. Callahan began
William Patrick Callahan OFM Conv DD (born June 17, 1950) is an American prelate of the Roman Catholic Church who has served as Bishop of the Diocese of
John Michael Callahan (February 5, 1951 – July 24, 2010) was an American cartoonist, artist, and musician in Portland, Oregon, noted for dealing with macabre