This study aims to analyze the mediating role of job satisfaction on the effect of person-job fit and person-organization fit on the organizational citizenship behavior of PDAM Tirta Binangun Kulon Progo employees. This research is a quantitative study that uses primary data collection with questionnaire instruments. The study involved 131 employees whose data were taken by census. https://countryscenesaddleryandpetsuppliers.shop/product-category/western-saddle-synthetic/