Objectives This scoping review seeks to identify what community-based support is used by older sexually and gender diverse (SGD) people, that aims to improve mental health/wellbeing.

Methods A scoping review was conducted using the Arksey and O’Malley framework. APA PsycInfo, Embase, MEDLINE, PubMed, and Scopus were searched. Key information was extracted and entered into a structured coding sheet before being summarized.

Results Seventeen studies were included (41% observational qualitative and 35% observational quantitative). The most commonly used community-based support was lesbian, gay, bisexual and transgender (LGBT) social groups. A range of practices were reported in five studies, including in SGD affirming religious congregations and mind-body practices. Two studies reported the use of formal programmes, with one based on a group initiative. Positive outcomes included feeling connected, improved social support and mental health, and coping with illness. Five studies reported null or negative findings, including a lack of acceptance. Most studies used categories for sex and gender inaccurately, and lacked detail when describing community-based support.

Conclusion The use of community-based support by older SGD people is underexplored. More interventions designed for and by this community are needed, along with experimental research to draw conclusions on effectiveness to improve mental health or wellbeing.