Roșia (Hungarian: Biharrósa) is a large commune in Romania, Crișana, Bihor County, around 21 kilometres (13 miles) north from the town of Beiuș.

Roșia covers a surface area of 72.52 km2 (28 sq mi).

It lies on the banks of the Valea Roșie River, a tributary of the Crișul Negru; the Șoimuș River flows into the Valea Roșie near Roșia.

Roșia has beautiful landscapes, mountain rivers, caves, and large forests.

In the Ciurul Mare Cave, speleologists have discovered some distinctively male, female, and child footprints; an anthropological analysis has identified Cro-Magnon and even Neanderthal characteristics in these footprints.