Oberndorf is a municipality in Kitzbühel District, Tyrol, Austria. It is located in the Leukental valley, on the Kitzbühler Ache stream, halfway between St. Johann in Tirol and Kitzbühel, at an altitude of 687 m above sea level.
It has area of 17.7 square kilometres (6.8 sq mi) and a population of 2,009. The municipality consists of a main village and several hamlets, reaching up to the Kitzbühler Horn mountain. Its neighbouring municipalities are Going am Wilden Kaiser, Kitzbühel, Reith bei Kitzbühel, and St. Johann in Tirol.
Until the 18th century copper was mined at the Rerobichl.
Today, economy is focused on tourism, and a quarry. Oberndorf has a railway halt on the Salzburg-Tyrol Railway.