Although the diagnosis of dependent personality disorder (DPD) has demonstrated construct validity and clinical utility, little is known about how best to model DPD in the DSM-5’s new, alternative model for diagnosing personality disorders. The current research aimed to represent DPD using the 25 pathological personality traits of the alternative model. Self-report measures of the 25 pathological personality traits, DPD, avoidant personality disorder, borderline personality disorder, and maladaptive interpersonal dependency were administered to an undergraduate sample (N = 194). Results indicated that— as consistent with extant theory— anxiousness, submissiveness, and separation insecurity were the three traits most strongly related to DPD symptoms. As a group, anxiousness, submissiveness, and separation insecurity were more strongly related to DPD symptoms (r = 0.55) than were the remaining 22 personality traits (r = 0.34). This group of three traits was strongly associated, however, with avoidant personality disorder symptoms (r = 0.55), suggesting that additional scrutiny of DPD and avoidant personality disorder in the alternative model may be needed. Limitations and directions for future research are presented.