Abstract: The study investigated the relationship between broken homes and child abuse among public secondary school students in south-west Nigeria. A descriptive research design of exploratory type was adopted for the study. A total of 1,440 public secondary school students in 36 schools from 9 Local Government areas in 3 south-western states of Nigeria were sampled for this study. Out of these students, 695 students were found to be abused and their responses formed the data that were analyzed for this study. A self-constructed questionnaire titled Child Abuse Questionnaire (CAQ) was administered on the students after validation. The instrument has construct validity coefficient of 0.756 and a reliability coefficient of 0.83. The statistical technique used was Pearson Product Moment Correlation. The result of the analysis showed that there is a significant relationship between broken homes and child abuse among these secondary school students. Based on the finding, it is recommended that focus should be made on ways to separate seriously abused children from continuously abusive parents and also on comprehensive intervention in abusive situation by private social service agencies. It is also recommended that abstinence and marriage education should be taught in schools and that counselors should look out for students from broken homes to monitor and counsel them.