Mahamayuri (Sanskrit: महामायूरी Mahāmāyūrī, Chinese: 孔雀明王 Kǒngquè Míngwáng, Vietnamese: Khổng Tước Minh Vương, Japanese: 孔雀明王 (Kujaku Myōō), Korean: 공작명왕 GongJakMyeongWang), is one of the Wisdom Kings in the Buddhist Pantheon. Mahamayuri is a peaceful personification, in contrast to the wrathful attitudes of male personifications of the Wisdom Kings. Mahamayuri had the power to protect devotees from poisoning, either physical or spiritual.
Mahamayuri's dharani, translated into Chinese by Kumārajīva, is considered to predate Mahayana Buddhism. It contains the only mention of the Rig Veda in the entire Chinese Buddhist canon.