This study examined the influence of student government responsibilities in enhancing institutional discipline in selected public secondary schools in Morogoro Municipal. This study addresses leadership responsibilities undertaken by student government leaders and their influence on maintaining a conducive learning atmosphere in secondary schools. This study adopted a convergent design under the mixed research approach. The study also relied on principles of Social Learning Theory pioneered by Albert Bandura in 1977. Different methods namely interviews and questionnaires were employed for data collection from 5 heads of schools, 5 Discipline teachers, 5 student leaders, and 52 students obtained by using stratified random and purposive sampling techniques. The reliability of questionnaires was established at 7.13 Cronbach Alpha and the conformability technique for the interview guide for ethical data collection procedures. Quantitative data were analyzed and presented descriptively and by using inferential statistics procedures, additionally, qualitative data were analyzed thematically and presented using narratives. The study revealed how student government responsibilities impact school discipline by promoting rules, encouraging positive behavior, providing guidance and counseling, and serving as role models. The study concluded that student government enhances discipline committees to achieve a well-maintained school discipline. Consequently, the study recommended that the Ministry of Education, Science, and Technology develop a detailed official document that highlights the significance of involving student government in institutional discipline committees in public secondary schools.