Oltressenda Alta (Bergamasque: Oltressènda Ólta) is a comune (municipality) in the Province of Bergamo in the Italian region of Lombardy, located about 80 kilometres (50 mi) northeast of Milan and about 30 kilometres (19 mi) northeast of Bergamo. As of 31 December 2004, it had a population of 195 and an area of 17.3 square kilometres (6.7 sq mi).

Oltressenda Alta borders the following municipalities: Ardesio, Clusone, Gromo, Rovetta, Villa d'Ogna, Vilminore di Scalve, Oltressenda alta has two majority localities: Nasolino and Valzurio.

Demographic evolution