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André Leonhardt vs. transgender people

AndrĂ© Leonhardt is an Austrian psychologist and anti-transgender activist. Leonhardt promotes the spurious disease “rapid-onset gender dysphoria” and is associated with anti-trans hate group Society for Evidence-Based Gender Medicine (SEGM).

In 2025, SEGM announced that Leonhardt would be presenting on “Empirical Findings and Psychodynamic Reflections on Personality, Functioning, Identity Development, and Trauma in Gender-Dysphoric Adolescents.”

Selected publications

Leonhardt, A. (2025). [doctoral dissertation] Geschlechtsdysphorie in der Adoleszenz : Empirische und theoretische Beiträge zur differenzierten klinischen Konzeptualisierung [Gender dysphoria in adolescence: Empirical and theoretical contributions to a differentiated clinical conceptualization]. https://ulb-dok.uibk.ac.at/ulbtirolhs/content/titleinfo/12077383

Leonhardt, A., Fuchs, M., Kohlböck, G., Gander, M., & Sevecke, K. (2025). „Same Same but Different“: Geschlechtsdysphorie und Anorexia nervosa in der weiblichen Adoleszenz [Gender dysphoria and anorexia nervosa in female adolescence]. Praxis der Kinderpsychologie und Kinderpsychiatrie, 74(2), 173–192. https://doi.org/10.13109/prkk.2025.74.2.173

Leonhardt, A., Fuchs, M., & Sevecke, K. (2024). Übersichtsarbeiten [Review Articles]. Das Unbehagen am eigenen Geschlecht – Geschlechtsinkongruenz in der ICD-11 [Sexual Self in Disquiet – Gender Incongruence in ICD-11]. Praxis der Kinderpsychologie und Kinderpsychiatrie, 73(8), 737–752. https://doi.org/10.13109/prkk.2024.73.8.737

Leonhardt, A., Fuchs, M., Gander, M., & Sevecke, K. (2024). Gender dysphoria in adolescence: examining the rapid-onset hypothesis. Neuropsychiatrie, 39(1), 1–10. https://doi.org/10.1007/s40211-024-00500-8

Leonhardt, A., Fuchs, M., Kohlboeck, G., Bachler-Ortner, N., Haid-Stecher, N., Gander, M., & Sevecke, K. (2025). Distress Profiles of Adolescents with Gender Dysphoria: A Cluster Analysis Approach. Archives of Sexual Behavior. https://doi.org/10.1007/s10508-025-03221-3

Resources

ResearchGate (researchgate.net)