This review provides information on just world belief in terms of close relationships. Although just world belief has been studied regarding mental health, forensic, industrial-organizational, social and religion psychology, there have been limited studies regarding close relationships and there is a gap and need in this field. Theoretical explanations regarding functions, characteristics and development of just world belief, which means that individuals believe that they live what they deserve and deserve what they live, has been reviewed, the distinction between general-personal belief in a just world and immediate-ultimately justice has been discussed, supporting theories were briefly explained. The accessible related literature were summarized. Belief in a just world can affect how individuals handle cognitively and behaviorally positive and negative experiences such as violence, abuse, neglect, infidelity in a couple and marital relationship. Belief in a just world can have both positive and negative effects on close relationships. The cycles that individuals will enter in case of such experiences in a couple or marital relationship and the reflections of the belief in a just world that can be seen in the processes of forgiveness, staying in a relationship or separation were discussed. Suggestions for further qualitative and quantitative research were presented.