Michael Callahan

Michael Callahan may refer to:


 * Michael Callahan (basketball) (fl. 1984–2000), Australian wheelchair basketball player and businessman
 * Michael Callahan (rowing) (fl. 1992–2013), collegiate rowing coach
 * Michael Callahan (soccer) (born 1987), American soccer player
 * Michael J. Callahan (fl. 1995–2014), former Yahoo executive
 * Michael J. Callahan (New York politician) (1858–1902), American saloonkeeper and politician
 * Sean Michael Callahan (born 1975), retired American soccer player
 * Michael Shane Callahan, American actor
 * Mike Callahan, fictional character in the Callahan's Crosstime Saloon short stories by Spider Robinson