What does Klaus mean?
How popular is Klaus?
Klaus is an uncommonly occurring given name for men but a very prominent last name for all people (#5944 out of 150436, Top 4%). (2000 U.S. Census)
Nicholas (#57 the previous year), Nils and Niklas are the popular alternative forms of Klaus (not ranked) rated in the Top 1000. These boy names reached the apex of their popularity during 1900-1909 (usage of 0.3933%) and are somewhat less popular today (usage 0.3143%, ▼20.1%). Below is a charted analysis of the popularity of Klaus and affiliated names. (2014 Birth Statistics)