Family name Klajo (Klajo 
) , in all the world, is a very rare surname. The last name Klajo is habitual in Croatia, where it is a rare surname, Canada, where it is an extremely rare surname, and the United States. Much less frequently, Klajo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Klajo | Canada, United States, India, Nigeria, Croatia |