Hosszúhetény is a village in southwest Hungary, Baranya county. It is located 18 kilometres northeast to Pécs, the county capital, in a valley between the feet of Zengő, the highest peak of the Mecsek mountains and the peak called Hármashegy. The valley has been inhabited since the Stone Age. Two other nearby villages belong to the administration of Hosszúhetény: Püspökszentlászló and Kisújbánya.
Located in an environmentally protected area, a special microclimate producing rare flower species like Paeonia officinalis ssp, among picturesque mountains, the three villages are popular among tourists who arrive from all parts of Hungary and abroad. One of the main sites is the arboretum of the episcopal castle in Püspökszentlászló.