Ó Meallaigh
Ó MEALLAIGH—I—O Meallie, O Mellie, O Mella, Melly, (Malley); 'descendant of Meallach' (from 'meall,' pleasant); the name of an old West Connacht family. Three bishops of the name filled the see of Annadown in the 13th and 14th centuries.
Alphabetical Index to Irish Surnames