Claus \c-laus\ as a boy's name is of German origin. Variant of Nicholas (Greek) "people of victory", representing a short form of Niclaus or Niklaus. The name is associated in America with Santa Claus. Actor Klaus Kinski.
Claus has 3 variant forms: Claes, Clause and Klaus.
Baby names that sound like Claus are Claas, Klaes, Klaas and Colas.