Last name Finnseth (Finnseth 
) , in the world, is a very rare cognomen. The surname Finnseth is characteristic of Northern Europe, particularly Norway, where it is quite a rare surname.
| oliver finnseth Norwegian agronomist, teacher (1910-2008) (b. 1910) |
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| oddmund finnseth Norwegian jazz musician, NO (b. 1957) |
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| asle finnseth Norwegian journalist and contributing editor, JP (b. 1958) |
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