The purpose of this study was to investigate the relationship between organizational justice (distributive, procedural and interactional) and organizational citizenship behavior of the staff of Damavand Azad University. In terms of purpose, this research was an applied one and in terms of data collection, it was a descriptive-correlational survey. The statistical population of the study consisted of 152 university staff; out of which 108 individuals were selected using Morgan table and simple random sampling method. To collect data, Organizational Justice Questionnaire of Beugre (1998) and Organizational Citizenship Behavior Scale of Podsakoff et al, (1990) were used; the former included 21 items for 3 components and the latter included 24 items for 5 components. The content validity of the questionnaire was confirmed by experts and our supervisor and the reliability of the questionnaire was confirmed using Cronbach's alpha (organizational justice: 0.95, organizational citizenship behavior: 0.79). The research data was analyzed by SPSS software. The mean and standard deviation were used in the descriptive statistics and Kolmogorov-Smirnov test was used in inferential statistics, for normal distribution of data. Then, Pearson correlation and regression were used. The results showed that there is a significant relationship between the components of organizational justice and the distinct components of organizational citizenship behavior. The correlation coefficient of the highest amount, in this regard, i.e. the relationship between citizenship behavior and interactional justice is 0.506. In addition, among dimensions of citizenship behavior, sportsmanship is mostly related to interactional justice. The equation of regression line also showed that organizational justice cannot predict courtesy and sportsmanship well.
