James Hervey Hyslop (August 18, 1854 - June 17, 1920) was an American professor of ethics and logic at Columbia University, a psychologist, and a psychical researcher. He founded the American Institute for Scientific Research, which was later absorbed and replaced by the American Society for Psychical Research. He was one of the first American psychologists to connect psychology with psychic phenomena. He became convinced in the existence of afterlife. Beginning in 1907, he worked with different mediums to investigate spirit possession and obsession. He died in 1920 of thrombosis after months of illness. He was 65 years old.