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Cognomen Cosper (Cosper
) , globally, is quite a rare last name. The cognomen Cosper is habitual in the United States, where it is a rare surname, Austria, and Canada, where it is a very rare surname. In absolute terms, it most frequently occurs in the United States, Indonesia, and Canada. Much less frequently, Cosper is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cosper | Canada, Austria, Indonesia, United States, Venezuela |