This book provides a comprehensive knowledge of eco- marketing in large cities of the European Union. It explains how environmental marketing becomes a strategic tool for building sustainable development in cities. This book explores theoretical foundations such as green marketing and sustainable branding, emphasizing the connection between people, planet, and profit. It also analyses diverse city- specific marketing strategies that balance economic growth with environmental protection. In addition to this, this book includes case studies evaluating the effectiveness of these strategies and provides practical recommendations for improving urban ecological indicators like air and water quality, waste management, and green space availability. The focus is on a multi- level governance to foster sustainable urban development. Ecological Marketing in EU Cities will appeal to urban planners, marketing professionals, local government officials, sustainability consultants, academic researchers, and students interested in environmental marketing, sustainable urban development, and city- branding strategies.