The purpose of the research was quadrupled. It investigated the prevalence of anti-social behaviours in campuses of Nigerian universities. Several student fitness aspirants and recreationists perceived examination malpractices (85%), stealing (83%), armed robbery (81%), prostitution (82%), drunkenness (80%), smoking (79%), hard drug consumption (81%), cult membership (83%), violent demonstrations (98%), and abrupt stoppage of sporting activities due to hooliganism (87%), as the major anti-social behaviours prevalent among students of Nigerian universities. Results from the study suggested that there were significant gender differences in the acquisition of social qualities among aspirants and recreationists participating in fitness and recreational activities and the development of qualities for preventing anti-social behaviours among such groups of students. The study also indicated that no significant gender difference was observed among aspirants and recreationists participating in fitness and recreational activities and the development of moral qualities among students in Nigerian universities. A total of 212 respondents participated in the study. Six universities were randomly selected while 50 student fitness aspirants and recreationists were drawn from each of these universities by cluster sampling. Percentages and pearson chi-square test were used to answer four research questions and test three hypotheses formulated for the study. Recommendations were made for curbing anti-social behaviours among students of Nigerian universities. (Contains 4 tables.)