ABSTRACT. One of the important factors influencing perceptions of the existence of an ethical climate is leader behaviors. It is argued that paternalistic leadership behaviors are developed to humanize and remoralize the workplace. In various studies, leadership behaviors and climate regarding ethics were evaluated as antecedents of organizational commitment. In this sense, the purpose of this study is to investigate the relationship between paternalistic leadership behaviors, climate regarding ethics and organizational commitment. Data were obtained from 142 individuals. Results indicated that benevolent paternalistic leadership had a moderate effect on affective commitment and strong effect on continuance commitment. Moreover, it was found that paternalistic leadership had an effect on the perception of an ethical climate. Strong relationship was found between climate regarding ethics and affective commitment; moderate relationship was found between climate regarding ethics and continuance commitment. Finally, results indicated that climate regarding ethics had a mediating effect between benevolent paternalistic leadership and affective commitment.