This chapter examines electrodeposition, a versatile electrochemical process, to tackle the crucial wastewater treatment problem. This chapter thoroughly examines the basic principles of electrodeposition, its historical progression, and the specific techniques used in wastewater treatment. It explores the efficacy and benefits of electrodeposition techniques by evaluating the removal efficiencies of different contaminants, including heavy metals, organic compounds, and pathogens. Furthermore, it explores recent progress and breakthroughs in the discipline, encompassing new electrode materials and arrangements. The text examines the environmental and economic consequences of incorporating electrodeposition into wastewater treatment facilities. It provides a comprehensive examination of the present condition and future potential of electrodeposition as a sustainable and effective technique for wastewater purification, using case studies and practical illustrations. The potential of electrodeposition to revolutionise wastewater treatment is a beacon of hope in the face of the global water crisis, offering a sustainable and effective solution to the increasing strain on our water resources.