Family name Rüh (ルー 
, Rüh 
) , across the world, is a rare cognomen. The cognomen Rüh is habitual in Japan, where it is a rare surname, and Germany, where it is a very rare surname. Likewise, Rüh is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ルー | Japan |
| Rüh | Germany |
| max rüh DE (b. 1875) |
|
|
| anna rüh German athlete, DE (b. 1993) |
|