Description:
CUSACK is an Irish surname. It is derived from the Gaelic name Ó Cusack (anglicized as O'Cusack). The name is composed of the elements Ó (from the Gaelic Ó h-Uisce) and Cusack (a diminutive form of the Irish surname MacCusack). The name first appeared in County Cork in the late 12th century. The O'Cusack clan was one of the most powerful and influential families in Gaelic Ireland. The surname is also found in County Clare, County Kerry, County Limerick, and County Tipperary. The Cusack surname is also found in the United States, where it is most prevalent in New York, Massachusetts, and Wisconsin. The Cusack surname is also found in other countries, including Australia, Canada, and New Zealand. The Cusack surname has two main variations: O'Cusack and MacCusack. The O'Cusack variation is found in County Cork and County Kerry, while the MacCusack variation is found in County Limerick and County Tipperary.
