Arnfinn Haga (b.1936) is Norwegian non-fiction writer. He is known for his writing about the Norwegian resistance during WW2. He was awarded the King's Medal of Merit in gold in 2003. (https://en.wikipedia.org/wiki/Arnfinn_Haga).
― Anonymous User 10/5/2017
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Variants are Annfinn and Anfinn. Though Anfinn is also Danish and Icelandic and Annfinn is also Danish.