Callahan

Callahan may refer to:


 * Callahan (surname)

Fictional characters

 * Callahan, Pokémon trainer from Pokémon the Movie: The Power of Us
 * Bob Callahan from the movie Tag
 * Clarence "Razor" Callahan in Need for Speed: Most Wanted (2005 video game)
 * Father Callahan, in Stephen King novels
 * Harry Callahan (character), in Dirty Harry movies
 * Iain Callahan, a former Archon of Caoiva from Foxhole (video game)
 * Jack Callahan (Neighbours), from the Australian soap opera Neighbours
 * Mike Callahan, of Callahan's Crosstime Saloon in the novel series
 * Nancy Callahan, from the Sin City graphic novel series
 * Peggy Callahan in the TV series The Bionic Woman
 * Officer Phil Callahan from the serie Stranger Things
 * Professor Callahan, in the movie Legally Blonde
 * Thomas R. "Tommy" Callahan III in film Tommy Boy
 * Veronica Callahan in Mercy (TV series)

United States

 * Callahan, California, an unincorporated community
 * Callahan, Florida, a town in Nassau County
 * Callahan County, Texas
 * Callahan State Park, Massachusetts
 * Callahan Creek, a stream in Missouri
 * Callahan Tunnel, Massachusetts
 * Callahan, a neighborhood of Orlando, Florida

Other

 * A move in Ultimate Frisbee named after Henry Callahan