Patrick O'Donnell was an Irish republican executed for the murder of James Carey, whose testimony for the prosecution led to the executions of five men adjudged responsible for the Phoenix Park Murders. O'Donnell was from Gweedore, County Donegal.

Gweedore is a Gaeltacht (Irish-speaking) district and parish located on the Atlantic coast of County Donegal in the north-west of Ireland. Gweedore stretches some 26 kilometres (16 mi) from Glasserchoo and Bloody Foreland in the north to Crolly in the south and around 14 kilometres (9 mi) from Dunlewey in the east to Magheraclogher and Magheralosk in the west, and is sometimes described as one of Europe's most densely populated rural areas. It is the largest Irish-speaking parish in Ireland with a population of around 4,065, and is also the home of the northwest regional studios of the Irish-language radio service RTÉ Raidió na Gaeltachta, as well as an external campus of the University of Galway. Gweedore includes the settlements of Brinlack, Bunbeg, Derrybeg, Crolly and Dunlewey, and sits in the shade of County Donegal's highest peak, Errigal.