From an Irish surname, the Anglicized form of the Gaelic Mac Aodhagáin, which means "descendant of Aodhagán". The given name Aodhagán is a double diminutive of AODH.
From the old Irish name Áed, which meant "fire". This was a very popular name in early Ireland, being borne by numerous figures in Irish mythology and several high kings. It has been traditionally Anglicized as Hugh.
