Family name Kuperwajs (Kuperwajs 
) , all over the world, is an extremely rare cognomen. The family name Kuperwajs is habitual in Argentina, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Kuperwajs is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kuperwajs | United States, Spain, Argentina |