12,608 Global HAGGERTY Family Members

HAGGERTY Family History

This notable Irish surname, widespread in the counties of Donegal, Derry and Cork, is a form of the pre 10th century Old Gaelic O'hEigceartaigh, from the personal byname "Eigceartach". This has the strange literal meaning of 'unjust', and may refer to the original nameholder or chief who was considered to have been unjustly treated. The principal sept of O'hEigceartaigh were members of the Cineal Eoghan, that is a group of people who claimed descent from Eoghan, son of Niall of the Nine Hostages, a 4th century High King of Ireland.