Last name Steinþórsson (Steinþórsson 
) , in the world, is a very rare cognomen. The surname Steinþórsson is habitual in Northern Europe, particularly Iceland, where it is quite a common surname.
| VARIANT | COUNTRY |
|---|---|
| Steinþórsson | Iceland |
|
steingrímur steinþórsson Prime Minister of Iceland (1893-1966), IS (b. 1893) |
|
| haraldur steinþórsson (b. 1925) |
|
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| ingi þór steinþórsson basketball coach, IS (b. 1972) |
|
|
| ormr steinþórsson |
|
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| steinþór hróar steinþórsson (b. 1984) |
|