The study explored the relationship between management competencies of school heads and organizational excellence. This claim was substantiated. However, this had never been explored specifically in the local setting. With this, the study determined the extent of management competencies of school heads and organizational in public secondary schools of Panabo City Division. Also, it investigated the association of the involved variables and the domains of management competencies of school heads that significantly influenced organizational excellence. With the use of probability sampling, 150 secondary teachers in the public schools were selected as the respondents. Utilizing the descriptive-correlational survey method, the data collated were analyzed through the use of Mean, Product-Moment correlation and Regression Analysis. Results revealed that there was an extensive management competencies of school heads and an extensive organizational excellence. Furthermore, there was a significant relationship between the two variables. Moreover, all domains of management competencies of school heads were found to have significantly influenced organizational excellence. Based on the findings, it was further suggested that higher officials in the Department of Education may identify means on how to help the school heads in strengthening their management competencies to ensure the attainment of organizational excellence.