Hvosno (Serbian: Хвосно, "thick wood") was a medieval Serbian county (Serbian: жупа / župa) located in the northern part of the Metohija region, in what is today Kosovo. It roughly encompassed the areas of the modern Istog and Peja municipalities. It was surrounded by the counties of to the north; and Plav to the west; to the south; and to the east and southeast.