Hydroxyflavonoids are a class of polyphenolic compounds derived from flavonoids, characterized by the presence of one or more hydroxyl groups (-OH) attached to the B-ring of the flavone skeleton. These bioactive molecules are widely distributed in plants and have attracted considerable interest due to their extensive range of biological activities. Hydroxyflavonoids exhibit potent antioxidant properties, capable of scavenging free radicals and reducing oxidative stress. They also possess anti-inflammatory, antimicrobial, and anticancer effects, making them promising candidates for therapeutic applications. In addition to their health benefits, hydroxyflavonoids play significant roles in the food industry as natural colorants and preservatives. Their ability to enhance flavor stability and improve sensory qualities of various products makes them valuable additives. The chemical structure of hydroxyflavonoids allows for diverse modifications, enabling their use in a wide array of applications ranging from pharmaceuticals to cosmetics. Research into hydroxyflavonoids continues to uncover new potential uses, highlighting the importance of these compounds in both academic and industrial settings.