Last name Ræhs (Ræhs 
) , all over the world, is an extremely rare family name. The last name Ræhs is habitual in Northern Europe, particularly Denmark, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ræhs | Denmark |
| martinus ræhs Danish composer (1702-1766), DK (b. 1702) |
|