Innovation, especially innovative behavior, has become a vital interest among teachers in Indonesia, as it argues to play a prominent role in increasing work quality and effectiveness, particularly, tasks of teaching. However, empirical evidence assessing innovative behavior is still relatively limited, so it explores the effect of knowledge management (KM) and creativity on innovative behavior mediating by organizational citizenship behavior (OCB). A questionnaire collected the research data through a survey. The participant of this research is 363 teachers selected by accidental sampling. Data analysis uses path analysis supported by descriptive statistics. The results revealed that KM and creativity had a positive and significant effect on innovative behavior, both direct and indirect effects mediating by OCB. Thus, the teacher’s innovative behavior can improve through KM, creativity, and OCB. Besides, this research also found a research model about the effect of KM and creativity on innovative behavior mediating by OCB. This evidence can discuss among researchers and practitioners in developing innovative behavior models in the future and various contexts of organizations.