Last name Óttarsson (Óttarsson 
) , all around the world, is an extremely rare cognomen. The family name Óttarsson is characteristic of Northern Europe, particularly Iceland, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Óttarsson | Iceland |
| björn óttarsson IS (b. 935) |
|
|
| ásbjörn óttarsson Icelandic politician, IS (b. 1962) |
|
|
| andri óttarsson (b. 1975) |
|
Jón, Róbert, and Aðalsteinn