Ann Shulgin (born March 22, 1931) is an author and the wife of famous chemist Alexander Shulgin.
She has worked as a lay therapist with psychedelic substances such as MDMA and 2C-B in therapeutic settings while these drugs were still legal. In her writings, she stresses the potential of these drugs from a Jungian psychoanalytic perspective, as well as their use in combination with hypnotherapy. She often appears as a speaker at conventions, and has continued to advocate the use of psychedelics in therapeutical contexts.
Together with her husband she has authored the books PiHKAL and TiHKAL and contributed to the book Entheogens and the Future of Religion.