There are
241
Mullahys in the USA
Mullahy is the
79075th
most common last name in the USA

Mullahy Genealogy

OriginsThe Mullahy surname has its origins in Ireland, specifically in County Roscommon and nearby regions. It is associated with the Gaelic clan Ó Maolachaidh, who were historically located in this area.
Geographic DistributionThe Mullahy surname is most commonly found in Ireland, particularly in County Roscommon and neighboring areas. It may also have a presence in other parts of Ireland where members of the Ó Maolachaidh clan migrated or settled.
VariationsThere are no known variations of the Mullahy surname.
Migration and ImmigrationDue to its relatively localized origin and less common usage, there is limited information on the migration and immigration history of the Mullahy surname. However, it is possible that some members of the Ó Maolachaidh clan may have migrated or immigrated to other regions of Ireland or even to other countries.