Photocatalytic degradation has emerged as an effective and environmentally friendly approach for the removal of organic pollutants, dyes, pharmaceuticals, and toxic contaminants from wastewater. Increasing industrialization and urbanization have led to severe water pollution, creating an urgent need for sustainable treatment technologies. Semiconductor-based photocatalysts are widely studied because they can utilize light energy to generate reactive oxygen species capable of degrading hazardous compounds into harmless products. Among various photocatalytic materials, metal oxide nanostructures have attracted significant attention due to their chemical stability, non-toxicity, and strong oxidation capability. However, limitations such as rapid electron–hole recombination, low visible-light absorption, and poor surface activity restrict their practical efficiency. To overcome these challenges, researchers have focused on developing nanohybrid photocatalysts with enhanced charge separation and improved catalytic performance. Tungstate-based nanohybrids have gained considerable interest in photocatalytic applications because of their excellent optical properties, tunable band gaps, and high physicochemical stability. Metal tungstates such as zinc tungstate, bismuth tungstate, silver tungstate, cobalt tungstate, and nickel tungstate exhibit strong photocatalytic activity under ultraviolet and visible-light irradiation. The formation of nanohybrids by combining tungstates with graphene, carbon nanotubes, conducting polymers, or other semiconductors significantly improves electron mobility and suppresses charge-carrier recombination. These hybrid structures provide larger surface area, enhanced light absorption, and superior photocatalytic efficiency for the degradation of organic pollutants. Furthermore, morphology engineering and heterojunction formation in tungstate nanohybrids contribute to better stability and reusability, making them promising materials for advanced environmental remediation and sustainable wastewater treatment technologies.