This study investigated prevalence and risk factors for suicidal ideation among adults with self-reported disability in Western Canada. The method was secondary data analysis utilising the Canadian Community Health Survey. The odds of 12-month suicidal ideation are 3.5 times greater for adults with self-reported disability compared with non-disabled adults, controlling for age, sex, ethnicity, and psychiatric morbidity. The heightened risk of ideation among adults with self-reported disability is partially explained by social adversity, including food insecurity and low sense of community belonging. Reducing suicide risk among adults with disability requires a broad-spectrum approach, including mental health care, and strategies to ameliorate social and economic hardship.