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Cognomen Opalach (Opalach
) , around the globe, is a rare family name. The cognomen Opalach is characteristic of Poland, where it is a rare surname, the United States, where it is a very rare surname, and Germany. More frequently, Opalach is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Opalach | Poland, France, United States, United Kingdom, Germany |