Gherdëina (Ladin: [ɡʀ̩ˈdɜi̯na] ; Italian: Val Gardena [val ɡarˈdeːna; -ˈdɛːna];German: Gröden [ˈɡrøːdn̩]) is a valley in Northern Italy, in the Dolomites of South Tyrol. It is best known as a skiing, rock climbing, and woodcarving area.
The valley's main river is the Derjon. The three municipalities in Gherdëina are Urtijëi, Sëlva, and Santa Cristina; they were served by the Fërata de Gherdëina from 1916 until 1960.
Gherdëina is one of five valleys with a majority of Ladin speakers (two of these valleys are in South Tyrol). The form of the Ladin language spoken in this valley is called Gardenese in Italian, Grödnerisch in German and Gherdëina in Ladin.