AIM: This study was conducted to determine the relationship between nurses’ organizational citizenship behavior organizationalcitizenship behavior and organizational trust and job satisfaction.METHOD: This descriptive study was carried out in March and April 2014 among 429 nurses working in a private hospital which had anInternational Joint Commission International Accreditation Certificate. “A Descriptive Information Form”, “Organizational CitizenshipBehavior Scale”, “Organizational Trust Inventory” and “Minnesota Job Satisfaction Scale” were used in data collection. The requiredpermissions and approvals were obtained from the authors of the scales, the ethics committee and the institution. Frequency,percentage, Pearson Correlation and multiple regression analysis were used in the analysis of the data.RESULTS: In this study, it was determined that organizational citizenship behavior levels of nurses were high (M=5.45±0.59). Itwas determined that the nurses demonstrated the highest organizational citizenship behavior with regard to conscientiousness(M=6.10±0.56), and they demonstrated the lowest organizational citizenship behavior with regard to courtesy (M= 4.54±0.69). It wasdetermined that organizational citizenship behavior had a significant positive relationship with organizational trust and job satisfaction(p<0.001). According to the regression analysis, it was determined that organizational trust was explained with 13.5% of the nurses’organizational citizenship behavior levels while job satisfaction was related to 80.9% of the nurses’ organizational citizenship behaviorlevels.CONCLUSION: As a result of this study, it was found that organizational trust and job satisfaction influenced organizational citizenshipbehavior. Nursing managers should encourage improvements and make plans to teach nurses behaviors beyond those normallyexpected