Autistic individuals are at significantly higher risk of suicide than non-autistic individuals, with transition-aged youth at potentially the highest risk. While lower executive function (EF) skills have been significantly associated with suicide risk in other clinical samples, the link between EF and suicidality has not yet been examined for autistic individuals. In this study, 183 transition-aged autistic youths completed routine suicide risk assessments and self- and informant-reports of autistic traits, depression, and EF skills. On the P4 Suicide Screener, approximately one-third of the sample (33.3%) endorsed having thoughts of hurting themselves with the intent to end their lives (i.e., suicidal ideation) in their lifetime. In addition to depressive symptoms, EF impairment independently predicted endorsement of suicidal ideation, indicating that both are crucial intervention goals to target suicidal risk for transition-aged youth on the spectrum. Findings suggest that executive functioning, a prevalent area of difficulty and common intervention target for the autistic community, is an important indicator of suicide risk in this population.