We are delighted to provide this book entitled “Seaweed as Feed Supplement for Broiler Chickens”. This book represents an in-depth exploration of seaweed (brown and green seaweed) nutrient contents, and the influence of seaweed on the digestibility of nutrients, immunity, growth, and production performances of broiler chickens. The significance of this book lies in its potential to revolutionise poultry nutrition and contribute to sustainable poultry farming practices. Each chapter delves into specific aspects related to the application of seaweed as a feed supplement for broiler chickens. From an assessment of prior works to the chemical compositions of brown and green seaweed, nutrient digestibility, growth and production performance, quality of meat, carcass features, intestine morphology, microbial quantification, immune status and more; this book comprehensively examines various facets of this innovative approach. The explorations presented here are not only relevant but also invaluable for professionals engaged in broiler nutrition and farming. It is our hope that this book will serve as a catalyst for further endeavours in the sector. We extend our deepest gratitude to all those who have contributed their expertise, time, and support throughout the development of this work. It is their unwavering dedication that has made it possible to bring forth such a resource for scholars and industry professionals alike. We sincerely hope that readers will find inspiration within these pages and come away with a deeper understanding of how seaweed can impact broiler chicken’s nutrition. Ultimately, it is our aspiration that this book will spark new discussions and pave the way towards innovative advancements within the realm of animal science.