This study identifies antecedents of two specific dimensions of organizational citizenship behavior, altruism (OCBI) and civic virtue (OCBO), in a sample of Arab employees working in Kuwait. Results indicate that a collectivist orientation is a significant predictor of altruism and that procedural justice and job satisfaction are significant predictors of civic virtue. Additionally, respondents indicate that both altruism and civic virtue behaviors are more likely to be perceived as in-role than extra-role behaviors by study participants. Findings provide additional insight into the relevance of OCB and its antecedents in organizations within an Arab cultural context and the resultant implications for managerial processes and decisions.