Given the aforementioned toxicological consequences of heavy metals on aquatic life and humans, it is imperative to know the levels of heavy metals in water bodies around Langtang-North dams in order to take the appropriate measures. In light of this, the study evaluated the concentrations of Cd, Cr, Ni, Mn, Fe, and Pb in the water and fish of the Langtang dams, located in the northern region of Langtang state in Nigeria, as well as in the main and small dams.