Family name Hallsdottir (Hallsdottir 
) , all over the world, is a very rare surname. The surname Hallsdottir is habitual in Iceland, where it is quite a common surname, Norway, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Hallsdottir is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hallsdottir | Norway, Iceland, United States, United Kingdom, Germany |