Ó Naoidheanáin
Ó NAOIDHEANÁIN—I—O Nenane, O Nynane, Nynane, Neenan, Neenin, (Nunan, Noonan); 'descendant of Naoidheanán' (diminutive of naoidhean, an infant); a rare Munster surname; sometimes disguised under the anglicised form of Nunan or Noonan.
Alphabetical Index to Irish Surnames