Updated June 9, 2019 Share: Boy name origins & meanings German : Small Boy name variations Klein Klein - 7% this year Masculine Rare Find out more Kleinert Kleinert 0 % this year Masculine Rare Find out more Kline Kline - 17% this year Masculine Rare Find out more Family name origins & meanings German, Swiss, Dutch, and Jewish (Ashkenazic) : nickname from an inflected form of Klein ‘small’.