The aim of this study was the examination of Posttraumatic Nightmares (PTNM) and Posttraumatic Anxiety Dreams (PTAD) in Dutch combat veterans and World War II victims. Participants (outpatients; n = 223) were administered a standardized psychiatric interview, the Impact of Event Scale, the SCL-90, the Clinician Administered PTSD Scale, and an interview on posttraumatic nocturnal re-experiencing. Prevalence of PTNM was 56%. Patients with PTNM, even those who were not diagnosed with PTSD, had significantly more psychiatric complaints than patients with no PTNM.