Researchers have documented predictors of life-threatening violence by men toward women. Little research has assessed predictors of life-threatening violence toward men by women. We investigated such predictors in a sample of 302 men who sustained partner violence (PV) and sought help. Based on prior research on women as victims, we examined the following as potential predictors: demographics of the participant, his female partner, and their relationship; relationship power imbalances; her use of various forms of PV; her alcohol/drug use; his use of various forms of PV; his mental health and substance abuse; and his help seeking and social support. Logistic regressions indicated that there were 2 consistent predictors: the female partner's frequency of physical PV and the number of sources from which the participant sought help.