This chapter discusses the challenges and opportunities of dealing with wastewater generated from abattoir operations. It emphasizes the importance of sustainable wastewater management and the need to comply with regulations. An insight into the characteristics of abattoir wastewater and its potential environmental implications is provided. Wastewater treatment technologies, ranging from primary and secondary treatment methods to emerging innovations are explored. The importance of resource recovery, water recycling, and energy generation from wastewater treatment processes is emphasized as essential components of responsible abattoir wastewater management. Real-world case studies that illustrate the successful implementation of sustainable practices in abattoirs, offering valuable lessons for industry professionals and policymakers alike are showcased. Challenges and barriers, including economic, technical, and social aspects, along with strategies to overcome them, are discussed. Future trends and technologies for better wastewater management in abattoirs were discussed.