Le Fleix (French pronunciation: [lə flɛ]; Occitan: Lo Flèis) is a commune in the Dordogne department in Nouvelle-Aquitaine in southwestern France.

Le Fleix lies on the banks of the Dordogne at a place where the river bends.

It was sold during the French Revolution, and became a Protestant church in 1805.

The harbour is active in the timber and wine trades.

The economy, once based on the river, is now primarily viticultural.