MOYNIHAN Family History
Recorded in several spellings forms including Moynihan, Monahan, Monaghan, Monaham, Minihane, Minihan, and probably others, this is an Irish surname of great antiquity. It originates from the Gaelic O' Muimhneachain, which literally transaltes as "The male descendant of the Munsterman". The surname is most popular in Counties Cork and Kerry, which form part of the province of Munster. The modern spellings are usually Moynihan and Monaghan, the spelling in the 16th century being generally recorded as Minighane, and regarded as the principal surname of West Cork.