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Last name Rooijen (Rooijen
, Ружен
) , across the world, is quite a rare family name. The cognomen Rooijen is habitual in Netherlands, where it is quite a common surname, Belgium, where it is quite a rare surname, and Albania, where it is a rare surname. In absolute terms, the name is most common in Western Europe, particularly Netherlands, Belgium, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Rooijen | Netherlands, Belgium, Slovakia, Albania, Germany |
| Ружен | Russia, Ukraine |