Mohammad Ali Taheri (Persian: محمد علی طاهری; born 1956, in Kermanshah, Iran) is an alternative medicine practitioner who is the founder of Erfan-e-Halgheh, also called Interuniversal Mysticism, a version of Iranian mysticism Irfan. He is also the founder of the Erfan Halghe Cultural Institute.

Taheri has founded two pseudo-scientific complementary medicine treatments Faradarmani and Psymentology and, according to him, has been honored with doctorate degrees by alternative medicine universities for his research.

He is currently based in Canada after the grant of asylum by the Government of Canada.

Mohammad Ali Taheri was born in 1956 in Kermanshah, Iran and received his primary education from his hometown. Later, they moved to Tehran for better opportunities.

Later, he went to Turkey where he studied briefly at the Middle East Technical University but did not get any degree.

Upon his return to Iran, he founded an engineering firm, Tiva Kian Engineering and Design Company, and designed small machines for use in mushroom production and flour factories.

According to Taheri, he has never followed any specific Sufi path or particular religion. He used to find answers to his questions through books and documents. He also used to meditate deeply.

During his self-study of cosmology, he began to believe that science and spirituality can converge in a single quest. Therefore, he proposed two ways to heal exclusively based on a path of "self-understanding" called Faradarmani and Psymentology.