This study aims to determine the effect of organizational learning culture, self-efficacy, and organizational citizenship behavior on knowledge sharing behavior of teachers at State Senior High Schools (SMAN) in Surabaya. The sample consisted of 92 respondents. Data collection was done by questionnaire. After that, the validity, reliability, and data analysis through SEM-PLS tests were carried out. The findings of this study show that organizational learning culture has a positive and significant effect on organizational citizenship behavior, self-efficacy has a positive and significant effect on organizational citizenship behavior, organizational learning culture has no effect on knowledge sharing behavior, self-efficacy has a positive and significant effect on knowledge sharing behavior, and organizational citizenship has a positive and significant effect on knowledge sharing behavior.