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ii Suicide is the 10th leading cause of death in the United States (Centers for Disease Control, 2012), and despite decades of research, the prediction of suicide risk remains relatively imprecise. Though a large number of factors are associated with suicide, there is relatively little empirical guidance as to how to efficiently integrate this information to determine suicide risk. Joiner (2005) proposed the interpersonal-psychological theory of suicide as an approach to understanding suicidal ideation and behavior, and numerous studies have supported its theoretical and clinical utility. In the current study, the relationships among hope, self-forgiveness, and the interpersonal-psychological theory of suicide were explored. Hope moderated the relationship between thwarted belonging and suicidal ideation in younger adults, and self-forgiveness moderated the relationship between perceived burdensomeness and suicidal ideation in both younger and older adults. These findings suggest that hope and self-forgiveness may confer resilience against suicidal ideation in the presence of these risk factors