The Ontario Psychological Association (OPA) is the professional organization representing psychology in Ontario. The OPA was established in 1947. Our members are clinicians, academics, researchers, and students who are dedicated to improving the mental health and wellbeing of Ontarians. The OPA provides leadership to promote the mental health and wellbeing of Ontarians, and to inspire excellence in the profession of psychology through research, education, clinical excellence and advocacy. The OPA strives for a healthcare system in which psychological services are accessible to all Ontarians, where psychologists can practice to their full potential, and the value of the professional healthcare services psychologists provide is widely and properly recognized.
 
The Ontario Psychological Association has a searchable directory of psychologists on their website; in addition, members of the public can also call 416-961-5552 for more information.