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 series Stranger Things Professor Callahan, in the movie Legally Blonde Thomas R. "Tommy" Callahan III in film Tommy Boy Veronica Callahan in Mercy (TV series)
Places 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
See also Callaghan (disambiguation) Callihan