This study examined the extent to which harassment experiences correlate with posttraumatic stress disorder (PTSD) symptoms, and whether diagnosable PTSD on the basis of sexual harassment occurs after accounting for prior PTSD, prior sexual abuse, and prior psychological dysfunction. The sample consisted of a two-wave panel of 445 women who had received a domestic violence protective order from a Kentucky court. Hierarchical linear and logistic analyses confirmed that sexual harassment experiences were significantly correlated with PTSD symptoms after controlling for an extensive set of trauma variables measured in both the baseline and follow up interviews. Our findings lend further evidence that claims of PTSD from sexual harassment may be credible even if claimants have been victims of other forms of trauma.