Kavu is the traditional name given for sacred groves across the Malabar Coast in Kerala, South India. Kavus are notable for Theyyam, the centuries-old ritual dance.

A Sarpa Kavu (meaning Abode of Snakes) is a traditional natural sacred space seen near traditional homes in Kerala state of South India. The site is believed to be inhabited by snakes, and the area usually contains a representation of Manasa ('Goddess of the Snakes'), Naga Raja (King of the Snakes) and other Naga Devatas (snake deities), where offerings and rites are performed during special ceremonies. This is a Hindu ritual performed by certain sects of Nambudiris, and all castes hold the Sarpa Kavu in reverence, with access forbidden to the area unless for due ceremonies.

Brahmin mythology says that Kerala was created from the Arabian Sea and given to the Brahmins (Nambudiris) as a "donation" by Parasurama to save himself from the sins of killing numerous kshathriya kings. The land was full of forests and poisonous snakes were found in plenty. So the Brahmins refused to stay there. Parasurama requested Lord Shiva to provide a solution. Shiva told Parasurama to start worshipping Manasa, Anantha and Vasuki the king of snakes. Parasurama did so and they advised him to start snake worship in Kerala and provide some forest especially for snakes in the form of Sarppakkavu (Snake forests). Parasurama later installed the idols of Goddess Manasa, Anantha and Vasuki at Mannarassala (near Harippadu in Alappuzha district) and Vettikkottu (near Kayamkulam in Alappuzha district) and started worshipping them. The Brahmins also worshipped Goddess Manasa, Anantha and Vasuki and the pleased snake deities made Kerala suitable for living.

Sarpa Kavus even help in soil and water conservation besides preserving its rich biological wealth. The ponds and streams adjoining the groves are perennial water sources. These are the last resorts to many of the animals and birds for their water requirements, especially during summer. Sacred groves also enrich the soil through its rich litter composition. The nutrients generated thus are not only recycled within the sacred grove ecosystem but also find their way into the adjoining agroeco systems.

A Kavu is a South Indian version of an Indian sacred grove.

Sacred groves of India are forest fragments of varying sizes, which are communally protected, and which usually have a significant religious connotation for the protecting community. Hunting and logging are usually strictly prohibited within these patches. Other forms of forest usage like honey collection and deadwood collection are sometimes allowed on a sustainable basis. Sacred groves did not enjoy protection via federal legislation in India. Some NGOs work with local villagers to protect such groves. Traditionally, and in some cases even today, members of the community take turns to protect the grove. However, the introduction of the protected area category community reserves under the Wild Life (Protection) Amendment Act, 2002 has introduced legislation for providing government protection to community held lands, which could include sacred groves.

Indian sacred groves are sometimes associated with temples / monasteries / shrines or with burial grounds (which is the case in Shinto and Ryukyuan religion-based sacred groves respectively in Japan). Sacred groves may be loosely used to refer to other natural habitat protected on religious grounds, such as Alpine Meadows.

Historical references to sacred groves can be obtained from ancient classics as far back as Kalidasa's Vikramuurvashiiya. There has been a growing interest in creating green patches such as Nakshatravana.