Surname Magnússon (Manson 
, Magnusson 
, Magnússon 
) , throughout the world, is a common family name. The surname Magnússon is habitual in Iceland, where it is a widespread surname, Sweden, where it is a common surname, and Reunion, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, it is commonest in Sweden, the United States, and the United Kingdom. Very seldom, Magnússon is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Manson | Australia, Canada, Sweden, United Kingdom, United States |
| Magnusson | Canada, Sweden, Iceland, United Kingdom, United States |
| Magnússon | Denmark, Sweden, Iceland, United Kingdom, United States |
| Магнуссон | Russia, Ukraine |
Magnusdottir, Magnuson, and Magnúsdóttir
| árni óreiða magnússon (b. 1180) |
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| jón magnússon Earl of Orkney (b. 1201) |
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eiríkr ii prestahatari magnússon Norwegian king, NO (b. 1268) |
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| ari magnússon (b. 1571) |
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| jón magnússon Icelandic writer, IS (b. 1610) |
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árni magnússon Icelandic scholar and manuscript collector (1663-1730), IS (b. 1663) |
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| gísli magnússon (b. 1621) |
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| erlendur magnússon (b. 1695) |
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| nikulás magnússon (b. 1700) |
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| skúli magnússon (1711-1794), IS (b. 1711) |
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| gísli magnússon (b. 1712) |
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| guðmundur magnússon (b. 1741) |
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katrín magnússon Icelandic politician, IS (b. 1858) |
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jón magnússon Icelandic politician (1859-1926), IS (b. 1859) |
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| gísli magnússon (b. 1815) |
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Ari, Georg, Linda, Lárus, Jakob, Torfi, Elvar, Elmar, Ernir, Einar, Egill, Eyþór, Helgi, Hlynur, Ottó, Unnar, Árni, Ægir, Óskar, Ómar, Þór, Þröstur, Gulli, Magnús, Daði, Páll, Már, Aron, Atli, Axel, Karl, Dane, Geir, Lisa, Jens, Jón, Funi, Ingi, Orri, Örn, Magni, Anton, Arnar, Agnar, Bragi, Kári, Petur, Darri, and Samúel