Carl Pfaffmann (May 27, 1913 – April 16, 1994) was an American physiological psychologist, noted for his research of the senses of smell and taste. Pfaffman was a member of the National Academy of Sciences, the American Academy of Arts and Sciences, the American Philosophical Society, Florence Pirce Grant University Professor of Psychology at Brown University, Vincent and Brooke Astor Professor at Rockefeller University. He was a recipient of the Warren Medal from Society of Experimental Psychologists and the Distinguished Scientific Contribution Award from American Psychological Association.He was also president of the Eastern Psychological Association and the Division of Experimental Psychology of the American Psychological Association.