Many studies have demonstrated that borderline personality disorder (BPD) is associated with aggression and, in particular, intimate partner violence; however, the mechanisms underlying this association have been less clearly identified. The present study examines the hypothesis that negative urgency (impulsive behavior in response to intense, negative emotions) may explain the specific association between BPD and intimate partner violence. Cross-sectional self-report measures of BPD, violent behavior, and multiple dimensions of impulsivity were administered to 193 undergraduate men. BPD profile scores were associated with both general violence behaviors and intimate partner violence; however, an indirect path via negative urgency existed only with intimate partner violence. No indirect paths from BPD scores were demonstrated via any other factors of impulsivity, although sensation seeking was an independent predictor of general violence. Clinical implications and directions for future research are discussed.