Wieprz (, ) is a village in à »ywiec County, Silesian Voivodeship, in southern Poland. It is the seat of the gmina (administrative district) called Gmina Radziechowy-Wieprz.
It is one of the oldest villages in à »ywiec Basin. It was first mentioned in Liber beneficiorum (1470-1480) as Wyeprze Maior and Wyeprze Minor.