This paper examined the role of counselling, and parental encouragement on re-entry of adolescents into secondary school in Abia State, Nigeria. A total of 353 adolescents who re-entered school were selected from six secondary schools in the State through a simple random sampling technique. A validated questionnaire was used for data analysis. Data were analyzed using regression analysis. The study revealed that counselling and parental encouragement significantly determine re-entry of adolescents into school in Abia State, Nigeria. Based on the findings, it is recommended that counsellors should identify and counsel at-risk adolescents who are out of school with a view to getting them back to school. Parents and counsellors should collaborate in counselling and encouraging adolescents who are out of school, and those who re-enrolled, so as to develop their potentials and empower them to contribute towards National development. (Contains 2 tables.)