The perspective of organizational support behavior requires employees who can work beyond their primary duties and organizational expectations. This study examines the effect of perceived organizational support (POS) on organizational citizenship behavior (OCB), with job satisfaction (KK) and organizational Commitment (KO) as mediating variables. The sample in this study was 150 employees of Aceh regional government organizations. The analytical tool used is the covariance-based regression method, namely structural equation model amos for model development and research hypothesis testing. The results showed that each variable, perceived organizational support, job satisfaction, and organizational Commitment, positively affected organizational citizenship behavior. Job satisfaction and organizational Commitment partially mediate the relationship between perceived organizational support and organizational citizenship behavior. Government organizations should provide optimal organizational support to employees so they can be active at all times and with all available opportunities.