Last name Смарасон (Смарасон 
, Smarason 
) , worldwide, is a rare family name. The cognomen Смарасон is habitual in Iceland, where it is quite a common surname, Ireland, where it is a rare surname, and Bulgaria. In absolute terms, it is the most numerous in Iceland, Spain, and Bulgaria.
| VARIANT | COUNTRY |
|---|---|
| Смарасон | Russia |
| Smarason | Iceland, Australia, Spain, Bulgaria, Ireland |