Vigfússon is a surname (patronymic) of Icelandic origin, meaning "son of Vigfús." In the Icelandic naming system, it functions as a patronymic rather than a hereditary family surname. The name is composed of the given name Vigfús (from Old Norse víg meaning "war" or "battle," and fúss meaning "willing" or "eager") combined with the suffix -son ("son").
Notable individuals bearing this name include:
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Guðbrandur Vigfússon (1827–1889) — One of the foremost 19th-century scholars of Old Norse and Icelandic studies. He completed the Cleasby–Vigfusson Icelandic-English Dictionary (1874), a foundational reference work for Old Norse lexicography, and co-edited the Corpus poeticum boreale (1883), a collection of Old Norse poetry. He spent much of his career at Oxford University.
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Orri Vigfússon (1942–2017) — Icelandic entrepreneur and environmentalist, known for his work in salmon conservation and river habitat restoration.
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Ýmir Vigfússon (born 1984) — Icelandic hacker and computer security expert, recognized for his work in information security research.
