Mahamayuri (Sanskrit: महामायूरी Mahāmāyūrī ("great peacock"), Chinese: 孔雀明王 Kǒngquè Míngwáng, Vietnamese: Khổng Tước Minh Vương, Japanese: 孔雀明王, romanized: Kujaku Myōō, Korean: 공작명왕 Gongjak Myeongwang), or Mahāmāyūrī Vidyārājñī is a bodhisattva and female Wisdom King in Mahayana and Vajrayana Buddhism.

[12] Legend holds that in primordial times, the original Phoenix (Fenghuang), the leader of flying beings, gave birth to the peacock Mahamayuri and to the eagle named the Golden-Winged Great Peng.

In exchange for a promise to renounce its habit of preying on humans, the Buddha elevated the peacock to the status of his godmother, while the eagle became his uncle and was granted a high position in heaven.

[18] The 16th-century Chinese novel Journey to the West includes a story about how the king of the Kingdom of Zhuzi had a hobby of hunting when he was a young prince.

While engaged in gathering firewood and preparing a bath for fellow monks, Sāḍdhi encountered a perilous situation when a large black snake emerged from a hole in a decaying tree and bit him on his right big toe.

The venom swiftly spread throughout his body, causing him to collapse unconscious on the ground, foaming at the mouth, with his eyes rolled back.

Expressing the significance of the mantra, the Buddha instructed Ananda to propagate it among all sentient beings, offering protection from harm and the opportunity to attain happiness.

[13] The Buddha imparted the Mahamayuri Vidyarajni Sutra with the specific intention of addressing the manifold challenges faced by sentient beings.

According to the sutra, both the text and the mantra possess the extraordinary power to alleviate diseases, afflictions, and fears while serving as a protective shield for all living beings.

Instructing Ananda to disseminate this sutra and mantra widely, the Buddha aimed to liberate sentient beings from suffering and guide them towards the attainment of happiness.

Bound and facing peril, he remembered the mantra, reciting it and miraculously securing his release, with his consorts emerging unscathed.

[13] Recognizing the formidable efficacy of this mantra, the Buddha discerned its capacity to mitigate grave transgressions, eradicate minor wrongdoings, and dispel all forms of suffering.

In contemporary times, her veneration is thought to be closely related to medical care, public health, environmental protection, and social welfare.

In Taiwan, her veneration is promoted by the Chinese Great Peacock Buddha Association(中華世界大孔雀佛協會), which has their main headquarters located at Kaicheng Temple.