Due to their combined nutritional values and therapeutic potential, functional dairy products have gained considerable attention. Using milk-derived bioactive components such as probiotics, prebiotics, peptides, conjugated linoleic acid (CLA), sphingolipids, lactoferrin, and immunoglobulins, this chapter examines the development, makeup, and health features of functional dairy. These elements have numerous physiological effects, including regulating the body’s immune system, enhancing gut health, lowering cholesterol, avoiding oxidative stress, besides preventing the development of chronic illnesses like osteoporosis, cancer, and high blood pressure. The chapter also covers other functional dairy formats, such as yoghurt, kefir, cheese, labneh, ice cream, butter, and ghee, which are increasingly being enhanced with minerals, herbal extracts, and microorganisms that promote health. Scientific evidence supports the integration of these functional ingredients to enhance public health and address specific nutritional needs. As biotechnological innovations and consumer demand for health-oriented diets rise, functional dairy products are positioned at the forefront of personalized nutrition and preventive healthcare strategies.