O'Connell is a noble surname of Irish origin.
[1] It is an anglicisation of the Irish Ó Conaill (meaning "descendant of Conall").
[1] The personal name Conall is composed of the elements con (from cú meaning "hound") and gal (meaning "valour").
[1] The O'Connell family were a noted clan of Derrynane, Munster.