Last name Alfonsson (Alfonsson 
) , around the world, is a very rare surname. The surname Alfonsson is habitual in Iceland, where it is quite a rare surname, Sweden, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Alfonsson | Iceland, Sweden, United States |
| garðar alfonsson badminton player, IS (b. 1940) |
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| sven alfonsson researcher |
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