What does Callahan mean in Gaelic?
What does Callahan mean in Gaelic? Irish: reduced Anglicized form of Gaelic Ó Ceallacháin 'descendant of Ceallachán', a diminutive of the personal name Ceallach, possibly meaning 'lover of churches', from ceall 'church', or (more likely) 'bright-headed', from cen 'head' + lach 'light'. Is Callahan Scottish or Irish? Callahan is a well-known Irish surname. The Callahan name means descendent of Ceallachán. He was the Eóganachta King of Munster from AD 935 until 954. The personal name Cellach means 'bright-headed. Is Callaghan a Scottish name? O'Callaghan (/əˈkæləhən, oʊ-, -hæn, -ɡən, -ɡæn/) or simply Callaghan without the prefix (anglicized from Ó Ceallacháin) is...