Background: Managers' decision making as one of the management skills has always been considered as a major factor in the progress of organizations. Accordingly, identification of the effective factors on it is essential. By understanding this, aim of the present study is to investigate the relationship between the ethical climate of the organization and the decision making of managers with the mediating role of personal knowledge management.
Method: The research method is descriptive- correlation. The statistical population consisted of all the managers and staff of Razi University of Kermanshah. 195 persons were selected by stratified random sampling method, proportional to the volume of each class. Data were collected by three questionnaires; organizational ethical climate, decision-making of managers and personal knowledge management. Data were analyzed through Pearson corelation and path analysis by LISREL and SPSS.
Results: The results of the study showed that the relationship between dimensions of the ethical climate of the organization and the personal knowledge management was positive and significant, mediating role of personal knowledge management in the relationship between social responsibility and decision making by managers was positive and significant.
Conclusion: In order to improve decision making, managers should pay attention to the ethical climate of the organization and the personal knowledge management.