Last name Kristjonsson (Kristjonsson 
) , in the world, is a very rare family name. The last name Kristjonsson is characteristic of Iceland, where it is quite a common surname, the United Kingdom, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Kristjonsson | Iceland, United States, United Kingdom |
| valdimar kristjonsson |
|