Family name Arnþórsdóttir (Arnþórsdóttir 
) , around the world, is a very rare surname. The family name Arnþórsdóttir is habitual in Northern Europe, particularly Iceland, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Arnþórsdóttir | Iceland |
| kristín anna arnþórsdóttir Icelandic multi-sport athlete, IS (b. 1965) |
|