1) (a Sept which ruled over the territory of the two Umhalls, or Owles, now the Baronies of Murrisk and Burrishoole, co. Mayo, deriving their surname from Maille, Chief of the Sept; the O’Malleys are celebrated in Irish minstrelsy as expert seamen, and called the Manannans, or Sea Gods of the Western Ocean. Grace O'Malley, dau. of Owen O’Malley, Chief of the Sept, temp. Queen Elizabeth, was the famous Gran Uaile who visited England, and was presented to the Queen by the Lord Deputy). Or, a boar pass. gu. Crest—A ship with three masts, sails set, all ppr.
2) (Snugborough, co. Mayo; allowed by Hawkins, Ulster, 1775, to George O’Malley, Esq., of that place, descended from O’Malley, of Bellclare, same co.). Same Arms. Crest—A horse ramp. ar.
3) (Rosehill, co. Mayo, bart.; descended from Owen O’Malley, Esq., of Burrishoole, same co., whose ancestor, Bryan McCormac O’Malley, held the Castle of Moriske and Manor of Strode, temp. Queen Elizabeth, which were granted to his father, Cormac O’Malley who d. abroad in Her Majesty’s service, 1582). (Newcastle, co. Mayo; descended from Patrick O’Malley, second son of Owen O’Malley, Esq., of Burrishoole, the ancestor of O’Malley, Bart.). Ar. a boar pass. gu. bristled or, betw. three long-bows charged with arrows and bent, pointing in centre, one in chief, and a skiff with oars sa. betw. the two in base. Crest—A horse in full speed ar. Motto—Terra marique potens.
4) Ar. a bend sa. Crest: A goat's head erased sa. bezantee.