Lienz is a medieval town in the Austrian state of Tyrol. It is the administrative centre of the Lienz district, which covers all of East Tyrol. The municipality also includes the cadastral subdivision of Patriasdorf.
Lienz is located at the confluence of the rivers Isel and Drava in the Eastern Alps, between the Hohe Tauern mountain range in the north (including the Schober and Kreuzeck groups), and the Gailtal Alps in the south. It is connected with Winklern in Carinthia by the Iselsberg Pass. The neighbouring municipality of Leisach marks the easternmost point of the Puster Valley.