Moynihan Family History
Moynihan Name Meaning
Irish:: Anglicized form of Gaelic Ó Muimhneacháin ‘descendant of Muimhneachán’ a diminutive of the byname Muimhneach ‘Munsterman’ i.e. someone belonging to the province of Munster. In Mayo this surname has sometimes been translated into English as Munster . There has been some confusion with Monaghan . variant of Monaghan . The Anglicized forms of this name can be indistinguishable from
Source: Dictionary of American Family Names 2nd edition, 2022