Background: With respect to great ethical scandals in every type of organization, the importance of an ethical dimension of leadership seems obvious. However, in order to understand this leadership phenomenon and its relationships with antecedents and outcomes, we must first know the nature of this phenomenon. This aim of this study was investigate the Personality traits (conscientiousness, agreeableness and neuroticism) and organizational variable (ethical context and perceived organizational support) as predictors of ethical leadership.

Methods: The method of current study was descriptive. The statistical population of this research was all of the employees of Karun Oil and Gas Producing Company. The sample consisted of 300 employees of KOGPC who were selected by stratified random sampling method. The instruments which used in this study were NEO-Five Factor Inventory (NEO-FFI) (36 items), Ethical Context Scale (5 items), Perceived Organizational Support Survey (8 items) and Ethical Leadership Questionnaire (10 items). In order to analyze the data, Pearson correlation and regression analysis were used.

Results: Results indicated that all of predictor variables were significantly associated with ethical leadership. Moreover, hierarchical regression analyses revealed that predictor variables account for 67 percent of variance of ethical leadership.

Conclusion: On the basis of results, individuals are attracted to, and are selected into organizations on the basis of perceived person-organizational values “fit”. In terms of ethical leadership, individuals with the characteristics and values that predispose them toward ethical leadership will look for organizations that have strong ethical climate and will be selected by them.