Callahan is an Irish surname, anglicized from Ó Ceallacháin. Those bearing it include: In military John H. Callahan, Civil War soldier and Medal of Honor recipient In sports Ben Callahan, baseball player Bill Callahan (football coach), American football coach Bryce Callahan, American football player Gerry Callahan, sports writer Henry Callahan, ultimate (frisbee) player Jamie Callahan, American baseball player Joe Callahan, American football player Nixey Callahan, baseball player and manager Ryan Callahan, hockey player Viviana Callahan Vargas (born 1980), Chilean ski mountaineer In politics and law Bob Callahan, Canadian politician Consuelo Callahan, American judge Deb Callahan, former president of the League of Conservation Voters Dennis Callahan, ran in the 2006 Maryland county executive elections Donald A. Callahan, 1938 Republican nominee for the U.S. Senate seat in Idaho Ed Callahan, former Chairman of the National Credit Union Administration (NCUA) James Yancy Callahan, former Delegate from the Oklahoma Territory to the U.S. House of Representatives John B. Callahan, mayor of Bethlehem, Pennsylvania Joseph R. Callahan (1892–1977), American politician, farmer, and businessman Michael J. Callahan (New York politician) (1858–1902), American saloonkeeper and politician Laura Callahan, former senior director at the U.S. Department of Homeland Security Sonny Callahan, former member of the U.S. House of Representatives for Mobile, Alabama Victor Callahan, American politician In music Bill Callahan (musician), US-American singer-songwriter Mat Callahan, US-American musician, author, songwriter, activist, music producer and engineer Sam Callahan, English singer In show business Bill Callahan (producer), producer and writer of Scrubs John Callahan (actor), actor in All My Children Noel Callahan, actor in Romeo! Dennis Callahan, choreographer Mars Callahan, actor, director, producer and writer E. J. Callahan, actor, known for his roles in Wild Wild West (1999) and Friends Others Americus Callahan, American inventor Daniel Callahan, American philosopher David Callahan, American writer Gene Callahan Harry Callahan (photographer), American photographer Jason Callahan, former unidentified decedent John Callahan (disambiguation) John Ross Callahan, American dental researcher Kenneth Callahan, American artist North Callahan, American historian William P. Callahan, American Roman Catholic bishop As a given name Callahan Bright, American football player Callahan Walsh, son of television personality John Walsh Calahan Cody Calahan, Canadian filmmaker Edward A. Calahan, American inventor Harold Augustin Calahan, American Navy Lieutenant Commander Sharon Calahan, American cinematographer As a given name Cal O'Reilly, Canadian ice hockey player Calahan Skogman, American actor and athlete See also Ó Ceallacháin Callaghan (disambiguation) Callihan Callahan Genealogy and History website References Anglicised Irish-language surnames Surnames of