The first name Jaylin is ♀ female and ♂ male.
The boy’s name Jaylin is a masculine variant of the name Jacqueline or a variant of the name Jalen. In the Netherlands, Jaylin is a variant of the girl’s name Jaylynn and a feminine form of the boy’s name Jason.
The boy’s name Jaylin means “may God protect”, “holder of the heel” or “supplanter” (from Jacqueline). The girl’s name Jaylin as well means “may God protect”, “holder of the heel” or “supplanter” (from Jaylynn) and “healer” (from Jason).