Hildburghausen is a district in Thuringia, Germany. It is bounded by (from the west and clockwise) the district of Schmalkalden-Meiningen, the city of Suhl, the districts of Ilm-Kreis, Saalfeld-Rudolstadt and Sonneberg, and the state of Bavaria (districts of Coburg, Haßberge and Rhön-Grabfeld). Located roughly halfway between the mountain chains of the Rhön and the Thuringian Forest, the district is densely forested and covered by hilly countryside.