Histrionic personality disorder (HPD) is defined by the American Psychiatric Association as a personality disorder characterized by a pattern of excessive emotions and attention-seeking, including inappropriately seductive behavior and an excessive need for approval, usually beginning in early adulthood.

People affected by HPD are lively, dramatic, vivacious, enthusiastic, and flirtatious. HPD affects four times as many women as men. It has a prevalence of 2–3% in the general population and 10–15% in inpatient and outpatient mental health institutions.