The current research aims at suggesting a causal structural model for interpreting the relationship between perceived authentic leadership, psychological capital, work engagement and organizational citizenship behavior among primary education teachers. اجمللد اخلاهس اإلصدار ـ عشر السابع -إبريل 2021 م جملت جاهعت الفيوم للعلوم الرتبويت و النفسيت Perceived authentic leadership(self-awareness, relational transparency, balanced processing, internalized moral perspective) has direct and indirect positive significant statistical effect from psychological capital (self-efficacy, hope, optimism, resilience) on work engagement (vigor, dedication, absorption). Work engagement (vigor, dedication, absorption) has direct positive significant statistical effect on organizational citizenship behavior toward (student, colleagues, school). Psychological capital (self-efficacy, hope, optimism, resilience) has direct and indirect positive significant statistical effect from work engagement (vigor, dedication, absorption) on organizational citizenship behavior toward (student, colleagues, school). Perceived authentic leadership (self-awareness, relational transparency, balanced processing, internalized moral perspective) has indirect positive significant statistical effect from psychological capital (self-efficacy, hope, optimism, resilience) and work engagement (vigor, dedication, absorption) on organizational citizenship behavior toward (student, colleagues, school).