ABSTRACTGender is one of the most important predictors of suicide in the elderly. In North America, older women are less likely to be suicidal than older men. So far, suicidologists have either ignored gender differences or have focused on the presumed causes of older men's suicidal behavior. In this paper, the focus is on older women's low rates of suicidal mortality. On the basis of a review of the literature, several hypotheses are suggested. One is that gender differences in suicide mortality reflect differences in coping. Another hypothesis is that gender differences are influenced by gender norms of suicidal behavior. Directions for prevention are proposed.