title: Ó Ceallacháin
text: # Ó Ceallacháin
  
  Ó Ceallacháin, anglicised Callihan, is an Irish surname. Notable people with the surname include:
  
  * Seán Óg Ó Ceallacháin (1923–2013), journalist, author and broadcaster
  * Bill Callihan (1916–1986), American football player
  * Mike Callihan (b. 1947), Lieutenant Governor of Colorado
  * Ryan Callahan, American hockey player
  * Shane Callahan (b. 1995), American journeyman plumber
  