Padraig Mac Giolla-Domhnaigh

Natten—This name is one of the anglicised forms of O'Neachtain, the other forms being Norton and Nocton. The O'Neachtains occupied the district immediately West of Athlone. Neachtan is of Pictish origin.

Alphabetical Index of Anglicised Surnames in Ireland

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