This study assessed the perceptions of Nigerian counsellors regarding the appropriateness of a range of school counsellors' activities and determined how Nigerian school counsellors viewed the appropriateness of the five dimensions of counselling practice. School counsellors from the Association of Professional Counsellors in Nigeria (n = 176) completed the International Survey of School-based Counselor Activities. Results were compared to those of counsellors from nine other nations. Findings revealed some commonalities and some potentially important differences. Nigerian counsellors considered the Educational and Career Planning dimension the most important dimension. In contrast to all the other national groups, Nigerian counsellors considered Administrative Activities as role appropriate. Relatedly, Nigerian counsellors considered Advocacy and School Improvement as the least important dimension of practice. Based on the findings, we recommend the continuation of national policy development to clarify the appropriate activities of school-based counsellors in Nigeria to assure the delivery of effective services to students.