Kjay is of American origin, derived from the combination of two popular names, Kai and Jay. It gained prominence in recent years as parents sought unique yet recognizable options for their children. The name Kjay typically bears no specific meaning, but its components can be interpreted independently: 'Kai' means 'sea' in Hawaiian, while 'Jay', derived from the French 'Jacques', signifies 'supplanter'. The name is often spelled variously as Kjai, Kai Jay, or simply Kai-Jay. It is considered unisex, suitable for both boys and girls.
"Kjay was not a popular name for newborns during these years, with just five babies named Kjay born in both 2012 and 2014, and another six in 2019."