Klaus is a German and Scandinavian spelling variant of the Dutch, German, Scandinavian, and English Claus.
Klaus is also a German contracted form of the English and French Nicholas.
Klaus is not widely used as a baby name for boys. It is not in the top 1000 names. In 2018, within the group of boy names directly related to Klaus, Nicholas was the most regularly used.
† Pronunciation for Klaus: K as in "key (K.IY)" ; L as in "lay (L.EY)" ; AW as in "cow (K.AW)" ; S as in "see (S.IY)"
A famous person named Klaus is Actor, Klaus Kinski, born Nikolaus Gunther Nakszynski, 18 October 1926 - 23 November 1991.