Cusack Family History
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Cusack Name Meaning
Irish (of Norman origin): habitational name from Cussac in Guienne, France, named with the Romano-Gallic personal name Cucius or Cussius + the locative suffix -acum. The surname died out in England, but is common in Ireland, where it was imported at the time of the Anglo-Norman invasion in the 12th century. It has been Gaelicized as de Cíosóg.
Source: Dictionary of American Family Names ©2013, Oxford University Press
Similar surnames: Rusak, Lueck, Cusato, Musick, Burack, Clack, Sack, Sock, Slack, Tuck