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Last name Ennis (Ennis
, אניס
, Эннис
) , all over the world, is a common cognomen. The surname Ennis is characteristic of Ireland, where it is quite a common surname, Jamaica, and the United States, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in the United States, Ireland, and the United Kingdom. Much less frequently, Ennis is the forename as well as the last name.