Biocolours, which are generated from natural sources such as plants, animals, and microbes, are increasingly being investigated as environmentally friendly alternatives to synthetic dyes. Their uses range across sectors, spurred by environmental and health concerns over synthetic dyes. Biocolours may be utilized efficiently as textile dyes, providing an environmentally beneficial alternative to synthetic dyes. Natural dyes may also have medicinal and antimicrobial qualities, which can increase their worth in items other than colouring. Furthermore, the creation of biocolours for smart food packaging is a promising topic that uses natural pigments and biodegradable materials to provide environmentally friendly, non-toxic, and effective packaging solutions. These smart packaging solutions can check food quality in real time using visual indicators to ensure food safety and shelf life. This method provides a greener and more sustainable option for managing industrial pollution. Biocolours have a wide range of uses in the food and beverage sectors, including drinks, dairy products, and meat. Biocolours are at the cutting edge of current food innovation due to their capacity to improve visual appeal, give health advantages, and encourage sustainability. As consumer tastes shift toward natural and sustainable solutions, the use of biocolours is expected to grow, providing new potential for manufacturers to differentiate their goods and match with the ideals of today’s health-conscious customers. This chapter will thus go over the numerous uses of biocolours in various sectors.