The strategic management of dairy wastewater is critical for mitigating its environmental impact and process sustainability. Dairy wastewater is characterized by high organic content, significant levels of fats, proteins, and nutrients, which pose substantial environmental risks if improperly managed. Effective treatment is essential to address these challenges and to comply with stringent discharge standards. This chapter examines various treatment technologies for dairy wastewater, including biological methods (aerobic and anaerobic processes), chemical treatments, and electrochemical processes. Biological treatments involve aerobic and anaerobic systems that effectively reduce organic load and pollutants. Chemical treatments focus on coagulation and oxidation to facilitate the removal of contaminants. Electrochemical methods, including electrocoagulation and electro-Fenton processes, offer advanced options for pollutant degradation. Additionally, phytoremediation and wetland systems provide natural treatment mechanisms, while constructed wetlands combine ecological benefits with treatment efficiency. Membrane technologies, such as microfiltration, ultrafiltration, nanofiltration, dialysis, electrodialysis, reverse osmosis, and membrane bioreactors, offer high-performance solutions for separating and concentrating pollutants. Integrated systems combining these technologies have shown promising results in optimizing treatment efficiency and meeting regulatory standards. By integrating multiple treatment approaches, these systems enhance overall effectiveness and sustainability. In conclusion, adopting a strategic, multi-faceted approach to dairy wastewater management can significantly reduce environmental impacts and improve compliance with discharge regulations. The development and implementation of integrated treatment systems are essential for advancing sustainable practices in the dairy industry.