Surname Guðmannsson (Guðmannsson 
) , around the globe, is an extremely rare family name. The last name Guðmannsson is characteristic of Northern Europe, particularly Iceland, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Guðmannsson | Iceland |
| gunnar guðmannsson association football player (b. 1930) |
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| rúnar guðmannsson association football player (b. 1939) |
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Pétur, Gunnar, Ísleifur, Guðmundur, and Sigurbjörn