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Family name Rosga (Rosga
) , throughout the world, is a rare surname. The cognomen Rosga is habitual in Germany, where it is a rare surname, Israel, and the United States, where it is a very rare surname. In absolute terms, it is the most numerous in Germany, the United States, and Philippines. More frequently, Rosga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rosga | Philippines, Poland, United States, Democratic Republic of the Congo, Germany |