Updated June 9, 2019 Find Baby Names Boy name origins & meanings Greek : People of victory; diminutive of Nicholas Boy name variations Claus Claus 0 % this year Masculine Rare READ MORE DETAILS Clause Clause 0 % this year Masculine Rare READ MORE DETAILS Klaus Klaus + 11% this year Masculine Rare READ MORE DETAILS Family name origins & meanings Dutch : from a reduced form of the personal name Nik(o)laas (see Nicholas, Claassen, Claus).