This book includes original and peer-reviewed research papers presented at 11th International Conference on Coastal and Ocean Engineering, which was held during August 9-11, 2024. The conference is sponsored by China University of Petroleum (East China), Shandong, China, co-sponsored by Qingdao University of Technology, China, technically supported by Concordia University, Montreal, QC, Canada and Griffith University, Australia, which aims to bring together innovative academics and industrial experts in the field of coastal and ocean engineering to a common forum. This book is intended for researchers, engineers, and advanced postgraduate students in the fields of coastal and ocean engineering. Topics covered in the book include coastal infrastructure developments, marine and offshore wind energy, oil spill and environmental hazards, wastewater disposal, estuary coastal engineering, offshore engineering, port waterway, oil and gas gathering and transferring, hydrodynamics of off shore structures, etc.