Surname Lauwen (Lauwen 
) , throughout the world, is a rare family name. The family name Lauwen is habitual in Netherlands, where it is quite a rare surname, Belgium, where it is a rare surname, and Portugal, where it is a very rare surname. Not in comparison with a country's population, the name is most common in Western Europe, particularly Netherlands, Belgium, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Lauwen | Belgium, Netherlands, Canada, Germany, Portugal |