Meaning and Origin of: Connolly

Family name origins & meanings

  • Irish : Anglicized form of Gaelic Ó Conghaile ‘descendant of Conghal’, a name meaning ‘hound valiant’ or of Ó Conghalaigh ‘descendant of Conghalach’, a derivative ofConghal; the two surnames have long been confused. Another possible origin is the West Cork name Mac Coingheallaigh (or Ó Coingheallaigh) ‘son (or ‘descendant’) ofCoingheallach’, a personal name meaning ‘faithful to pledges’.