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Surname Willker (Willker
) , all around the world, is a very rare last name. The cognomen Willker is habitual in Slovakia, where it is a rare surname, Venezuela, where it is a very rare surname, and Nicaragua. Measured by absolute frequency, it most frequently occurs in Slovakia, Venezuela, and Germany. More frequently, Willker is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Willker | Slovakia, Germany, United States, Venezuela, Brazil |