Updated June 9, 2019 Find Baby Names Boy name origins & meanings Latin : Rejoice; variation of Gaius Boy name variations Caius Caius + 9% this year Masculine Rare READ MORE DETAILS Cai Cai + 18% this year Masculine Rare READ MORE DETAILS Caio Caio - 6% this year Masculine Rare READ MORE DETAILS Kay Kay + 10% this year Neutral Rare READ MORE DETAILS Kaye Kaye + 15% this year Masculine Rare READ MORE DETAILS Keyes Keyes 0 % this year Masculine Rare READ MORE DETAILS Keys Keys 0 % this year Masculine Rare READ MORE DETAILS Cais Cais 0 % this year Masculine Rare READ MORE DETAILS