Øystre Slidre is a mountain municipality in the county of Oppland, Norway. The majority of residents live at Heggenes, Rogne, Skammestein, Beito and at Beitostølen. Øystre Slidre stretches from Nord-Aurdal and Vestre Slidre in the south, Vang in the west, Gausdal. Sør-Fron & Nord-Fron to the east, and up to Valdresflya, at the border of Vågå in the north.
Øystre Slidre is part of the traditional district of Valdres in central, southern Norway, situated between the valleys of Gudbrandsdal and Hallingdal. The highest point is Øystre Rasletind at a height of 2010 meters above sea-level. About 73% of the land is over 900 meters in elevation. The lowest points lie at 410 meters above sea-level.