Susan Jane Bradley (born 1940) is a Canadian psychiatrist best known for her work on gender identity disorder in children. She has written many journal articles and books, including Gender Identity Disorder and Psychosexual Problems in Children and Adolescents (with Kenneth Zucker) and Affect Regulation and the Development of Psychopathology. Bradley was Chair of the DSM-IV Subcommittee on Gender Disorders.Bradley served as Head of the Division of Child Psychiatry and was Psychiatrist-in-Chief at the Hospital for Sick Children and was consultant psychiatrist at the Clarke Institute of Psychiatry. She is a Professor Emerita in the Department of Psychiatry at University of Toronto and a fellow of the Royal College of Physicians.