Harold Clyde Bingham (January 21, 1888 – August 26, 1964) was an American psychologist and primatologist. He spent his early career as a psychology professor, interrupting this to join the United States Army during World War I. He joined the faculty of Yale University in 1925 and studied under the supervision of Robert Yerkes. Yerkes, a psychology professor, had an interest in primates, and Bingham also entered this field. He led a 1929-30 expedition to the Belgian Congo to study gorillas in the wild. Though hampered by the size of the expedition, Bingham managed to get close to several troops of the animals and record details of their behavior. Upon his return to the United States he joined the Civil Works Administration and the Emergency Relief Administration. Bingham later worked with t