Boy name origins & meanings Old French : Justice Boy name variations Justin Justice Justis Justino Justus Justinian Juste Justyn Jastin Jost Jusa Just Justain Justek Justian Justinas Justinius Justinn Justins Justn Justo Justton Justukas Justun Ustin Iestyn Iustin Yustyn Family name origins & meanings German : from the Biblical name Job, influenced by Jost (see Joost).