Family name Wallenius (Wallenius 
) , in the world, is quite a rare last name. The family name Wallenius is habitual in Northern Europe, particularly Finland, where it is quite a common surname, Sweden, where it is quite a rare surname, and Norway. In absolute terms, it is the most numerous in Finland, Sweden, and the United States.
| VARIANT | COUNTRY |
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| Wallenius | Sweden, Norway, Finland, United States, Denmark |
| anders wallenius SE (b. 1615) |
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| gabriel wallenius Swedish priest and librarian (1648-1690), SE (b. 1648) |
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| johan wallenius Finnish priest, FI (b. 1698) |
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ivar wallenius Finnish theologian and priest (1750-1818), FI (b. 1750) |
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johan fredric wallenius botanist (1765-1836), FI (b. 1765) |
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| gabriel wallenius Finnish crown bailiff and assessor, FI (b. 1725) |
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| martin johan wallenius finnish mathematician, FI (b. 1731) |
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| jacob wallenius Swedish librarian (1761-1819), SE (b. 1761) |
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anders wallenius Swedish politician, estate owner (1833-1889), SE (b. 1833) |
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| ivar ulrik wallenius finnish linguist, FI (b. 1793) |
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otto wallenius Finnish painter (1855-1925), FI (b. 1855) |
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| isak alexis wallenius Finnish priest (b. 1826) |
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allan wallenius Finnish politician (1890-1942), FI (b. 1890) |
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kurt martti wallenius Finnish general (1893-1984), FI (b. 1893) |
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olof wallenius Swedish businessman, SE (b. 1902) |
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