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