Kottakkal Arya Vaidya Sala is a 121-year-old charitable institution headquartered in Kottakkal, Kerala, dedicated to the practice, research, and manufacture of Ayurvedic medicines. It operates several Ayurvedic hospitals, research centers, and hundreds of authorized medicine agencies across India and internationally. The organization is governed by a charitable trust and is widely considered one of the most prestigious practitioners of classical Ayurveda in the world.