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Sexual and gender minority (SGM) people experience elevated rates of suicidal ideation and attempts. This scoping review examines the effectiveness of suicide prevention programs for SGM people. Eligibility criteria included: the intervention was specifically designed for SGM people or specific analysis of SGM (sub) samples; reported suicide or suicide-related outcomes; and provided an evaluation of the intervention or initiative. We searched relevant databases and reference lists for peer-reviewed, English-language papers and gray literature published between 2010 and 2021. The scoping review followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and used the Oxford Centre for Evidence-Based Medicine rating system. Twenty-three studies assessed legislative changes, a community public health campaign, school-based initiatives, and therapeutic …