Allassac (French pronunciation: [alasak]; Occitan: Alaçac) is a commune in the Corrèze department in the Nouvelle-Aquitaine region of central France.

[3] Located in the Brive Basin, the commune of Allassac is irrigated by three major rivers in the north–south direction: the Vézère and its tributaries the Loyre and the Clan which is a sub-tributary of the Corrèze.

Allassac, like many surrounding communes, is part of Vézère Ardoise Country and benefits from the label French Towns and Lands of Art and History.

The site of La Roche was inhabited as early as the Mesolithic period as evidenced by the Racloirs and Stone tools found in the area.

In 572 Saint Yrieix and his mother donated a farm and forges to Allassac which was part of Yssandon Country.

In the Carolingian period there was already a fortified complex with a church and a house belonging to the abbots of Limoges as well as a stately home.

The farmers then turned to fruit and tobacco cultivation while developing slate quarries with the new opportunity to ship to Paris by train.

A vineyard called Coteaux du Saillant - Vézère has been replanted on five hectares on schistose soil.