This book expounds on the impact of organizational culture on performances of Universities in Ogun State. In the course of the study, extensive review of relevant literature on the subject matter was embarked upon, which includes work already done on organizational culture by eminent scholars so as to know the impact it has on the performances of organizations. The method adopted in this study was survey and questionnaire was used as the instrument of data collection. The finding shows that there is no significant contribution of organizational culture in predicting the performances of Universities, some elements of organizational culture contributed predicting the performances of the Universities. Finally, the analysis shows that there is no significant relationship between organizational culture and performances of the Universities studied. The conclusive part of this research revealed insights regarding the impacts of organizational culture on performance of Universities. The general agreement is that positive organizational culture will have a positive impact on performance of any University.