The main objective of the study was to determine the significant relationship between classroom supervision and teacher academic outcome in relation to student academic outcome. Respondents of the study were 193 teachers of the University of Mindanao. Employing descriptive correlation as research design, questionnaires, mean, ANOVA and Pearson r as statistical tools, results revealed that classroom supervision was not significantly related to teacher academic outcome. Furthermore, no significant relationship also existed between classroom supervision and student academic outcome. It is recommended that school administration should continuously provide financial and other support needed by observation team to maintain or even improve the implementation of classroom supervision. Other academic performance-related variables like student interest, motivations and study habits should be studied.