Dellach (Slovene: Dole) is a municipality in the district of Hermagor, in the Austrian state of Carinthia.

Reißkofel, the highest peak of the Gailtal Alps east of the Lienz Dolomites, with an elevation of 2,371 metres (7,779 ft).

Archaeological findings in the hamlet of Gurina denote a settlement since the age of the Hallstatt culture, when the local Celtic population ran copper smelting facilities to coin mints.

The village of Doelach itself was first mentioned in a 1370 deed; the name was possibly derived from Slavic dolina: "valley".

For a long time, the estates were held by the Counts of Gorizia, until they fell to the Austrian House of Habsburg.