The study examined the prevalence and causes of unethical behaviours among university students in Edo State. Four research questions guided the study. The population of the study comprised all the 39,243 full-time undergraduate students from the 14 faculties that make up the University of Benin. A sample size of 300 undergraduates took part in the study. The instrument used for the study was a structured questionnaire designed by the researchers titled: Prevalence and Causes of Unethical Behaviours Questionnaire (PCUBQ).