Padraig Mac Giolla-Domhnaigh

Cunningham—Though there are about five or six forms of this south-western Scottish name, the one given is the most common. Several Irish sept names have been anglicised Cunningham and its various forms, namely: In the district of the Glenties, Co. Donegal, we find M'Cunnigan (Mac Cuinneagáin); in the districts of Castleblayney and Carrickmacross, Co. Monaghan, Kennigan and Kinnian, respectively (O'Cuinneagain and O'Cuinneachain); at Lisburn, Co. Antrim, and in Co. Derry Coonaghan (also O'Cuinneacháin); and in western Derry, eastern parts of Donegal, and in Tyrone, Conaghan (O'Connacháin), the latter also in North Connacht. It is also anglicised from Kinahan in Southern Ulster (O'Cuinneacháin) and Conagan in Orghiall (O'Connagáin).

Alphabetical Index of Anglicised Surnames in Ireland

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