Boy name origins & meanings Old French : Justice Boy name variations Justin Justice Justis Justino Justinian Juste Justyn Jastin Jobst Jost Jusa Just Justain Justek Justian Justinas Justinius Justinn Justins Justn Justo Justton Justukas Justun Ustin Iestyn Iustin Yustyn Family name origins & meanings German : humanistic adoption of the Latin form of the personal name Just.