Ó Maolfhachtna
Ó MAOLFHACHTNA—I—Mullaghny, Meloughna, Mulloughney, Mologhney, Mollowney, (Mollony, Moloney); 'descendant of Maolfhachtna' (servant of St. Fachtna); an old Tipperary surname, now generally assimilated to Moloney.
Alphabetical Index to Irish Surnames