This study investigated the influence of parental involvement on academic performance among public secondary school students at Shinyanga Municipality in Shinyanga region. It specifically investigated ways parents are involved in students’ education, challenges facing parental involvement in public secondary schools and the measures to be taken to promote parental involvement in public secondary schools at Shinyanga Municipality. The study employed mixed research approach and convergent parallel design. Quantitative data were analysed using descriptive statistics with the help of SPSS version 20 and were presented in tables, frequencies and percentage while the qualitative data were analysed thematically and presented in narrative forms. The findings of the study showed that parents are involved through school meetings, participating in different school contributions as well as participating in construction activities. It further demonstrated that negative perceptions towards education, language factor, limited time and illiteracy to some parents were the challenges facing parental involvement. The study recommends that the Government through the Ministry of Education should provide regular seminars to parents and the community at large on the importance of parental involvement. Also, there should be recognition and awards to parents whose children perform well in examinations and teachers should be trained on how to deal with parents when they visit schools. However, introduction of serious Parent Teacher Association will be helpful to ensure parental involvement is successfully practised.