Callahan

  • [ KAL-ə-han ]
  • English
From a surname, the Anglicized form of the Irish Ó Ceallacháin, which means "descendant of CEALLACHÁN".

CEALLACH   male   Irish
Irish name of uncertain origin, traditionally said to mean "bright-headed". Alternatively it could be derived from Old Irish ceallach "war, strife" or ceall "church".
OTHER FORMS
ENGLISH: Kelleigh, Kelley, Kelli, Kellie, Kelly
IRISH: Ceallach, Ceallachán, Ceallagh, Kelly