There are
291
Mcgranaghans in the USA
Mcgranaghan is the
67747th
most common last name in the USA

Mcgranaghan Genealogy

OriginsThe origins of the McGranaghan surname can be traced back to Ireland, specifically the Gaelic-speaking areas of County Donegal and County Derry. It is believed to have originated as a patronymic surname, denoting descent from an ancestor named Raghnán.
Geographic DistributionThe McGranaghan surname is most commonly found in Ireland, particularly in the counties of Donegal and Derry. It is also present in other countries with significant Irish diaspora, such as the United Kingdom, the United States, Canada, and Australia.
VariationsVariations of the McGranaghan surname may include MacGranaghan, MacGrenaghan, and Mag Ranacháin in Gaelic.