In Tibetan Buddhism, Siṃhamukhā or Siṃhavaktra, also known as the Lion Face Dakini or Lion-headed Dakini, is a wisdom dakini of the Dzogchen tradition. She is represented as a fierce dakini with the head of a snow lion. Her mouth is depicted with a roar, symbolizing untamed fury and jubilant laughter. Her roar disperses discursive thoughts. She is naked, symbolizing that she herself is completely free of discursive thought.

Jamyang Khyentse Wangpo, also known by his tertön title, Pema Ösel Dongak Lingpa, was a teacher, scholar and tertön of 19th-century Tibet. He was a leading figure in the Rimé movement.