The menace of cultism in Nigerian schools has certainly emerged as one of the main social problems in contemporary Nigeria, with obvious psychological consequences. This paper therefore examines the impact of religion in combating the demented acts of cultism in Nigerian schools, using Islam and Christianity as the basis. Religion dictates to its followers basic values intended to guide people towards living an ideal life-style. In Nigeria, there are two dominant religions: Islam and Christianity. To these writers’ minds the two religions do not condone cultism. The core values of these religions are purity, chastity, honesty, integrity, quality of moderation and humility. After the analysis of the causes and psychological impact of cultism, it then concludes with the submission that the menace of cultism in Nigerian schools can be drastically reduced or eliminated through the internalization and inculcation of the fear of God in the minds of students.