Alex Grey is an American visual artist, author, teacher, and Vajrayana practitioner known for creating spiritual and psychedelic artwork such as his 21-painting Sacred Mirrors series. He works in multiple forms including performance art, process art, installation art, sculpture, visionary art, and painting. He is also on the board of advisors for the Center for Cognitive Liberty and Ethics, and is the Chair of Wisdom University's Sacred Art Department. He and his wife Allyson Grey are the co-founders of The Chapel of Sacred Mirrors (CoSM), a non-profit organization in Wappingers Falls, New York.

Psychedelic art is art, graphics or visual displays related to or inspired by psychedelic experiences and hallucinations known to follow the ingestion of psychedelic drugs such as LSD, psilocybin, and DMT. The word "psychedelic" means "mind manifesting". By that definition, all artistic efforts to depict the inner world of the psyche may be considered "psychedelic".