Updated June 9, 2019 Find Baby Names Boy name origins & meanings English : Defender of mankind Boy name variations Lexi Lexi - 5% this year Neutral Uncommon READ MORE DETAILS Lexie Lexie - 6% this year Neutral Rare READ MORE DETAILS Lexin Lexin 0 % this year Masculine Rare READ MORE DETAILS How Popular Is The Name Lex Family name origins & meanings German and Dutch : from a short form of the personal name Alexius, Alexis.