Surname Klajs (Klajs 
) , in all the world, is a very rare last name. The family name Klajs is characteristic of Poland, where it is a rare surname, and the United States, where it is an extremely rare surname. Also, Klajs is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Klajs | Poland, United States |