In most societies where Christianity is dominant, it has manifested itself in different ways, reflecting its admixture with indigenous religious practices, an admixture commonly seen in most African contexts. This is evidenced by overt syncretic practices and rarely covert syncretic practices that conceal the blending of beliefs, including belief in the mystical powers of water. In part, this explains why African Christian believers, particularly African Pentecostal believers in most African countries, often uncritically believe claims about holy water. To that end, this article examines the literature to uncover the existence of covert syncretic holy water in African Neo-Pentecostal Churches (ANPC), particularly in South Africa, where ANPC pastors make arbitrary claims about the power of holy water. Contrary to the apparent syncretism, claims about holy water as witnessed among ANPCs in South Africa, covertly combine elements of two belief systems (ancient African traditions and contemporary African Christianity), resulting in covert syncretic holy water. As little or no literature understands the covert syncretic holy water, the work of this paper warrants future research to further examine the covert syncretic holy water, particularly in relation to ANPC holy water claims.