Padraig Mac Giolla-Domhnaigh

Paul—This name in Scotland and North-Eastern parts of Ulster is the anglicised form of M'Phail (Mac Phóil), and in Donegal and Western Derry the anglicised form of O'Maolfabhail. Its other forms are McFall and McFaul in Antrim and Down. In the Eastern part of Scotland its anglicised forms are M'Fyall and Fyall.

Alphabetical Index of Anglicised Surnames in Ireland

See also Woulfe’s Irish Names and Surnames
and O'Hart's Irish Pedigrees