Abstract: This study investigated sociological variables as determinant of involvement of university undergraduates in secret cult in Southwest, Nigeria. The study adopted descriptive research design of the survey type. The population consisted of all university lecturers in Southwest, Nigeria. The sample comprised of 600 lecturers selected from 10 universities including federal, state and private owned using multistage sampling procedure. Simple random sampling techniques was adopted to select two federal three states and five private universities. Simple random sampling technique was also used to select sixty lecturers from each university sampled to make a total of 600 L. The instrument used for the study was a questionnaire titled Sociological Variables as Determinant of University Undergraduate’s Involvement in Secret Cult Questionnaire (SVDUUISCQ). The validity of the instrument was established through face and content validity while the reliability was determined using test-re-test. The instrument was first administered on 20 L from a university that was not part of the sample. The instrument was re-administered again on the same set of lecturers after 2 weeks. The scores of the two tests were correlated using pearson product moment correlation co-efficient analysis and the reliability co-efficient of 0.74 was obtained. The data collected were analyzed using pearson correlation and regression statistical tools. It was found in the study that sociological variables contributed significantly to university undergraduate’s involvement in secret cult in Southwest, Nigeria. It was therefore recommended that children should imbibe moral, spiritual and societal values. Parents should wake up to their duties on the children and government should make necessary provisions for universities to give room for academic culture that could discourage cultism.