Dr. David H. Demmer

Dave is a clinical psychologist and has recently been awarded Australian Psychologist of the Year 2023. He is a respected therapist and speaker with expertise in gender and sexual diversity, self-worth, and resilience.

Dave is the founder and director of Q Psychology, Melbourne’s leading private psychology practice for the LGBTQIAP+ community with clinics in St Kilda, Carlton, and Geelong. Through his dynamic and authentic approach to psychological wellbeing, he leads a team committed to delivering high-quality mental health support to clients. As a respected mental health speaker and expert, Dave regularly presents for media and other organisations.

Dave holds several other roles:

– Member of the City of Port Phillip’s LGBTQIAP+ Advisory committee to Council
– Podcast host: Meet Q
– Deakin university associated research and supervisor
– Mental Health Subject Matter Expert for Movember (2021-2023)
– United Nations: UNAIDS Asia-Pacific Chemsex clinician toolkit advisory team
– Chair of the Australian Psychological Society College of Clinical Psychologists Victoria Section (2020-2022)

To book Dave for media or speaking engagements, get in touch!

Professional Affiliations

Member of The Australian Professional Association for Trans Health (AusPATH)
Member of The World Professional Association for Trans Health (WPATH)
Member of The Australian Clinical Psychology Association (ACPA)

Research & Publications

Livingston, J. D., Youssef, G. J., StGeorge, J., Wynter, K., Dowse, E. … Macdonald, J. A. (2021). Parental coping and psychopathology during the perinatal period: A mixed studies systematic review and meta-analysis. Clinical Psychology Review, 86.
Pecora, L. Hancock, G., Hooley, M., Demmer, D., Mesibov, G., Attwood, T. & Stokes, M.A. (2020 in press). Gender Identity, Sexual Orientation and Adverse Sexual Experiences in Autistic Females. Molecular Autism.
Demmer, D. H., Puccio, F., Stokes, M. A., McGillivray, J. A., & Hooley, M. (2017). The influence of child gender on the prospective relationships between parenting and child ADHD. Journal of Abnormal Child Psychology. doi:10.1007/s10802-017-0284-7
Demmer, D. H., Hooley, M., Sheen, J., McGillivray, J. A., & Lum, J. A. (2016). Sex differences in the prevalence of oppositional defiant disorder during middle childhood: a meta-analysis. Journal of Abnormal Child Psychology, 1-13. doi: 10.1007/s10802-016-0170-8
Demmer, D. H., Hooley, M., Sheen, J., McGillivray, J. A., & Lum, J. A. (2016). Sex differences in the prevalence of oppositional defiant disorder during middle childhood: A meta-analysis. Paper presented as an oral presentation 22nd International Association for Child & Adolescent Psychiatry and Allied Professions World Congress in Calgary, Canada, 2016, by David Hilton Demmer.

Contact me

Meet Q Podcast

Meet Q is a unique conversation about LGBTQIAP+ mental health hosted by experts in the field: clinical psychologists Dr. Dave Demmer and Dr. Jamie Byrne, as well as GP Dr. Tom Dickson.