Jolyon

Jolyon is an English form of Julian, itself derived from the Latin Iulianus, a Roman family name meaning "of Julius" or "belonging to the gens Julia." The gens Julia traced its name to Iulus, a figure from Roman legend, and the name may ultimately connect to the Greek Ioulos, meaning "downy-bearded" or "first beard," suggesting youth. The name is rare in general use but gained literary prominence through John Galsworthy's Forsyte Saga, in which Jolyon Forsyte appears as a central character across multiple generations. Related forms include Julian, Julius, and the feminine Juliana.