Sveg (Swedish pronunciation: [ˈsveːɡ]) is a locality and the seat of Härjedalen Municipality in Jämtland County, Sweden with 2,547 inhabitants in 2010.

Sveg is located on Riksväg 84 which runs from Hudiksvall in Gävleborg County to the Norwegian border where it connects with Fylkesvei 31 providing a route to Røros.

The smaller power plant located at Kvarnforsen just south of Herrö was built in 1966 and is owned by Härjeåns Kraft AB.

In spite of it being in the middle of the Scandinavian landmass on such a high latitude and a bit elevated, the winters are somewhat milder than expected, due to the mild North Atlantic air that often raises temperatures.

Sveg is the setting for his crime novel Danslärarens återkomst (2000) which was translated by Laurie Thompson (1938–2015) into English as The Return of the Dancing Master.