Data obtained from subordinate–supervisor dyads (N ¼ 314) of a large manufacturing company in South Korea were used to test a moderated mediation model of the processes linking person–organization (P–O) fit and employee work attitudes and behaviors. The results revealed that the influence of P–O fit on work attitudes and behaviors was indirect through perceived social exchange with organization. In addition, the relationship between P–O fit and perceived social exchange with organization was moderated by leader–member exchange (LMX) quality. Specifically, a high-quality LMX enhanced the positive effects of P–O fit on perceived social exchange with organization.