Tomás Ó Mellaig should not be confused with Tomas Ó Mellaig.
Tomás Ó Mellaig, Bishop-elect of Annaghdown, fl. 1329.
Ó Mellaig (O'Mellia, Melia) was Elected circa 1328 or 1329, but never consecrated. He was a kinsman of two previous bishops of Annaghdown, Conn Ua Mellaig (died 1202) and Tomas Ó Mellaig, (c.1242-1247/50). According to the Annals of Loch Cé, Tomas Ua Mellan, espuc Enaigh duin, do ecc h-i cuirt an phapa in hoc anno./Thomas O'Mellain, bishop of Enach-dúin, died at the Pope's court Avignon Papacy in hoc anno [1328].