The textile industry has long been a cornerstone of global economic development, contributing significantly to employment and trade. However, its environmental footprint, particularly in the dyeing and finishing processes, has raised substantial concerns in recent years. With dyeing processes accounting for some of the largest water and chemical usage in the industry, the shift towards sustainable practices is no longer optional—it is a necessity. This book explores a wide range of innovative, eco-friendly approaches to textile dyeing, from the utilization of natural pigments and algae-based dyes to revolutionary technologies like foam dyeing and waterless methods. By emphasizing sustainability, this compilation aims to provide researchers, industry professionals, and policymakers with actionable insights to reduce the environmental impact of textile production while maintaining product quality and meeting consumer demand.