John Edward Mack, M.D. October 4, 1929 – September 27, 2004 was an American Psychiatrist and Professor at Harvard Medical School. He was Pulitzer Prize-winning biographer, considered to be a leading authority on the spiritual or transformational effects of alleged alien encounter experiences, sometimes called the Abduction Phenomenon.
Born in New York City, Mack received his medical degree from the Harvard Medical School Cum Laude, 1955 after undergraduate study at Oberlin Phi Beta Kappa, 1951. He was a graduate of the Boston Psychoanalytic Society and Institute and was Board certified in child and adult psychoanalysis.