Portnablagh (Irish: Port na Bláiche, meaning, depending on translation, either 'Port of the Flowers' or 'Harbour of the Buttermilk',[1] possibly from the rough seas in the area) is a small village in County Donegal in Ulster, the northern province in Ireland.

Portnablagh (also written in English as Port-na-Blagh) is located on the north-west coast of County Donegal, specifically the west side of Sheephaven Bay.

The small harbour is protected on 3 sides and has a relatively short slipway which is used by fishing and pleasure boat owners, particularly during summer months.

[4][7][8] Ó Baoighill and his family were originally from Kiltooris Castle, near both Portnoo and Narin in the south-west of County Donegal.

[4] However, the surviving 'Plantation-era' fortified house (now ruined) may have been built in the second half of the seventeenth century, possibly for the Wray family.