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Family name Rujin (汝金 , Rujin
, Ружин
) , in the world, is quite a rare surname. The last name Rujin is habitual in Eastern Europe, particularly Ukraine, where it is a rare surname, Belarus, and Russia. In absolute terms, it is the most numerous in Ukraine, China, and Russia. More frequently, Rujin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 汝金 | China |
| Rujin | Philippines, Malaysia, India, United States, China |
| Ружин | Kazakhstan, Russia, Bulgaria, Belarus, Ukraine |
| Ружьин | Belarus, Kazakhstan, Russia |