Hårteigen is a characteristic mountain in Vestland county, Norway. It sits on and is visible from most parts of the vast Hardangervidda plateau. The mountain is located in the municipality of Ullensvang, and it is inside the Hardangervidda National Park. At an elevation of 1690 m above sea level, the peak of Hårteigen rises 480 m above the surrounding plateau which is fairly level. It is located about 30 km northeast of the town of Odda.

Name

The first element is from the Old Norse word hárr which means 'grey' and the last element is related to the German verb zeigen which means 'show'. On the large and flat plateau of Hardangervidda this mountain was important for travellers to find the direction.