Pupils behavior in the classroom today takes various forms of behavior depending on the social and cultural context. This study focused on the pupils perception of the classroom behavior: Physical Aggression, Verbal Expression, Non-Verbal Communication, Disrespecting Teacher, and Peer Pressure, the pupils academic performance for the second quarter, and the relationship between pupils classroom behavior and academic performance for the School Year 2022-2023. This study was conducted among the one-hundred-fifty (150) Grade V pupils in schools under South 1 District, Division of Gingoog City. This study used an adapted questionnaire from Lampasaran (2018). The researcher utilized the descriptive–correlational research. Statistical analysis like mean, standard deviation, and Pearson Product Moment Correlation Coefficient were employed to analyze the gathered data.The results revealed that overall pupils perception of classroom behavior was sometimes level. Non-verbal communication was rated the highest. Majority of the Pupils academic performance was at a fairly satisfactory level. Pupils classroom behavior has a significant impact on academic performance except for physical aggression. Academic performance has a fairly satisfactory level which means that pupils should improve their academic performance for better results The researcher recommends that the school, teachers, and parents may help each other in improving pupils positive behavior and academic performance.