Dr. Jonathan Leef, Ph.D., C.Psych. (Supervised Practice) is a Clinical Psychologist who has worked with children and youth on the autism spectrum and their families since 2002. He obtained his Ph.D. from the University of Toronto/OISE, and clinical and research training through the Hospital for Sick Children’s Autism Research Unit, the Centre for Addiction and Mental Health (CAMH), the Toronto District School Board, and Holland Bloorview Kids Rehabilitation Hospital. His primary research interests have focused on the co-occurrence of gender diversity and gender dysphoria in autism.

Jonathan is currently a post-doctoral research associate at York University’s Developmental Disabilities and Mental Health Lab and a Psychologist in the Autism Research Centre at Holland Bloorview Kids Rehabilitation Hospital.