This study examines the influence of parenting style on the academic performance of students in secondary school using four selected secondary schools in Agege Local Government Area of Lagos State as case study. One hundred students were randomly selected from these schools. One hundred parents were also randomly selected from Agege Local Government. Four hypotheses were developed to test the correlation between parenting style and academic performance of students in secondary school Questionnaire was used to gather data on gender, age, study skills habits, and family description. To determine parenting style, parents completed the Parenting Styles and Dimensions Questionnaire, while the students completed a peer-rating. Data was analyzed using percentage. Also, as hypothesized, academic performance of students in the selected schools was significantly positively correlated with a good parenting style. The research contends that parental involvement at all grade levels can assist in the academic and behavioral performance of students. Hence, it is suggested that similar research with relevant research methodology should be used in carrying out research in other states of the federation to ascertain the degree of conformity which this research have on the correlation between parenting style and academic performance of students in Nigeria.