Girl name origins & meanings German : Joyous; form of Jocelyn Girl name variations Jocalin Jocelina Jocelinah Jocalina Jocalyn Jocelinn Jocelynne Jocelle Joci Jocia Jocilyn Jocilynn Jocinta Joscelin Josilin Jossalin Family name origins & meanings English and German : from the Breton personal name Iodoc (Latinized as Jodocus) (see Joyce).