Objectives. The menopause is a major transition marked by considerable challenges to health and well-being. Its impact on autistic women has been almost largely ignored but is of significant concern, given the poorer physical and mental health, emotion regulation and coping skills, and the common social isolation of this group. We aimed to explore awareness and perception of the menopause; menopausal experiences and their impact across each individual's life; ways that menopause with autism might differ from a nonautistic menopause; and what optimal support might look like. Design. A qualitative interview study. Methods. Comprehensive interviews were conducted with 17 autistic participants (16 of whom identified as cisgender women). Inductive thematic analysis was used, guided by IPA principles and literature. Results. Four major themes were identified: (1) covering the long journey of our participants to recognizing autism in adulthood; (2) menopausal awareness and perceptions; (3) symptoms and their impact; and (4) ways that a neurodiverse menopause might differ from the norm. Menopausal experiences varied greatly and some participants experienced marked deterioration in daily function and coping skills, mental health, and social engagement. Menopausal awareness was often low, so too was confidence in help from health care professionals. Conclusions. These findings implicate the potential for menopause to severely compromise health and well-being of autistic people and indicate an area of underserved support needs. Statement of contribution What is already known about this subject? Menopause is recognized as a biopsychosocial transition point where women are particularly vulnerable to mental and physical ill-health and the deleterious effects of stress, unhealthy behaviours, and environments. Autistic people are known to have a reduced lifespan, with elevated suicidality, higher stress levels, and greater incidence of chronic illness. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.