Family name Thorsteinson (Thorsteinson 
) , in all the world, is a rare last name. The family name Thorsteinson is characteristic of Iceland, where it is quite a rare surname, Canada, and New Zealand, where it is a rare surname. In absolute terms, it is the most numerous in Canada, the United States, and Iceland.
| VARIANT | COUNTRY |
|---|---|
| Thorsteinson | Iceland, Canada, United States, United Kingdom, Denmark |
| árni thorsteinson (b. 1828) |
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| árni thorsteinson (b. 1870) |
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| joe thorsteinson Canadian ice hockey player (1905-1948), CA (b. 1905) |
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| randy thorsteinson Canadian politician, CA (b. 1956) |
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