See the list of courses in National Open University of Nigeria (NOUN). The NOUN university programs is arranged according to faculties in the school.
But before applying for any NOUN course, check the status of any of the courses and their admission requirements. You can check things such as if the department/course has been accredited by the Nigerian Universities Commission (NUC) or not.
With that said, see the list of courses at NOUN below.
National Open University of Nigeria (NOUN) courses
Update: Since this list might change at any time, I had to remove the list from here and instead provide you with a direct link to the NOUN webpage that lists all their available courses. Please see them at nou.edu.ng/programmes