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Klaas

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Wikipedia contributorsAdapted for Fathomly · View authors
2 min read
Source updated May 18, 2026

Klaas is a Dutch male given and surname. It is the Dutch short form of Nicholas (Dutch: Nicolaas), a Greek name ultimately meaning victory of the people. A traditionally common name in the Netherlands, its popularity declined some 20-fold since 1950. Archaic spellings include Claas and Claes. Among its female derivatives are Klaasje, Clasien, Clasina, Clasine, Clazien, Klasien, Klasina and Klaziena. Klaas also exists as a patronymic surname, though the forms Klaasen, Klaassen, Claassen, Claessen, and Claessens are more common.

01People with the given name

Claas

Fiction

  • Klaas Vaak is the traditional Dutch name for the Sandman

02People with the surname

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This article is adapted from the Wikipedia article “Klaas”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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