Meaning and history
Claus is a German, Dutch, and Scandinavian short form of Nikolaus or Nicholas. Nicholas derives from Greek Nikolaos, combining nikē, “victory,” with laos, “people,” and is conventionally interpreted as “victory of the people.” Saint Nicholas of Myra inspired later traditions surrounding Santa Claus, whose surname preserves this short form. Notable bearers include German resistance officer Claus von Stauffenberg and German-born British statistician Claus Moser.
Claus moved from #783 to #819 for boys between 1891 and 1898. That year also produced its highest recorded birth count, at 8.