Joselyn is a spelling variant of Jocelyn, a name brought to England via the Norman French and derived from an Old Frankish personal masculine name (Joscelin). The Franks modeled Joscelin after an old Germanic name Gautselin which itself was derived from the name of a Germanic tribe.
Joselyn is baby girl name mainly popular in Christian religion and its main origin is . Joselyn name meanings is Gaut. Other similar sounding names can be Joslyn, Jasilyn.