The Nahdlatul Ulama (NU) Islamic boarding schools (pesantren) in Lampung plays a vital role in religious education and character building within the community. The leadership of the kiai in the pesantren is not limited to the spiritual aspect, but also affects the social welfare of the surrounding community. Therefore, it is important to explore the application of utilitarianism principles in the kiai's leadership to improve the well-being of the community. This study aims to analyze the role of kiai leadership in NU pesantren in Lampung and how the principles of utilitarianism are applied in their leadership. The research method used is a qualitative approach with a case study design. Data were collected through in-depth interviews with kiais, pesantren administrators, and santri, as well as observations of the kiai's leadership practices in the pesantren. The results show that the application of utilitarianism principles in kiai leadership has proven to provide greater social benefits, both in education, economic empowerment, and social policies that prioritize the common welfare. This study concludes that kiai leadership based on utilitarianism principles can create a positive impact on the pesantren community and its surroundings. Furthermore, these findings contribute to the development of a leadership model based on social values and the well-being of the community, which can be applied in other pesantren across Indonesia.
                        
                        
                        
                        
                            
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