The educational environment is in need of finding ways for improving organizational performance. The global academic competitive with the 4.0 era necessitate lecturers whose committed and willing do more to for the organization. Organizational commitment and organizational citizenship behavior are two imperative concepts in the organization. This study examined the relationship of the three dimensions of organizational commitment (affective, normative, and continuance commitment) with employees' organizational citizenship behavior in an academic environment. Based on the results of the analysis, it revealed that in an educational environment only affective commitment shown to have a direct, strong, and positive correlations with one type of OCB of sportsmanship behavior. This result suggested possible impacts of such behaviour. Discussion on limitation of the study and implication for future research were also provided.