Ó hUiginn

Ó hUiginn or Ó hÚigínn is the surname of a Gaelic-Irish family of poets, scribes and historians located in Connacht. Originally part of the southern Uí Néill based in the Irish midlands, they moved west into Connacht. They were especially associated with what is now County Sligo, settling at Dooghorne, Achonry and Ballynary, as well as other locations in County Mayo, County Roscommon and County Galway. More than half of those bearing the surname in Ireland today still live in Connacht. The name is commonly anglicised as Higgins or O'Higgins.

...
Wikipedia