<b><i>Objectives:</i></b> Huntington’s disease (HD) is an autosomal dominant neurodegenerative disorder characterized by involuntary movements and psychiatric disturbances, found worldwide, with a variable prevalence. The purpose of this study was to determine the history of HD in Iceland and determine the prevalence and incidence of HD. <b><i>Materials and Methods:</i></b> Clinical information was obtained from general, neurologic, and...