Carl Curt Pfeiffer (March 19, 1908 – November 18, 1988) was a physician and biochemist who researched schizophrenia, allergies and other diseases.
He was Chair of the Pharmacology Department at Emory University and considered himself a founder of what two-time Nobel prize winner, Linus Pauling, PhD., named orthomolecular psychiatry and published in the Journal Science.