This study aims to determine and analyze the influence of work discipline, motivation, and organizational culture on OCB of employees in Bogor Regency High School. We used primary data from school interviews and questionnaires on a 1-5 Likert scale. Secondary data were collected from journals, books, and other publications. Respondents were all employees or teachers of State Senior High School 2 Gunung Puteri Bogor Regency Indonesia. The sampling method is probability sampling using the entire population of 60 teachers and staff. Data analysis with the SmartPLS3 application. The results of this quantitative study indicate that the hypothesis is accepted, meaning that work discipline has a positive and significant effect on organizational citizenship behavior (OCB), motivation has a positive and significant effect on organizational citizenship behavior (OCB), and organizational culture has a positive and significant effect on organizational citizenship behavior (OCB). In some cases, work discipline, motivation and organizational culture have a positive and significant effect on organizational citizenship behavior (OCB) of Bogor Regency high school employees.