Oarța de Jos (Hungarian: Alsóvárca) is a commune in Maramureș County, Crișana, Romania.

The commune is located in the southwestern part of the county, at a distance of 52 km (32 mi) from the county seat, Baia Mare.

It lies on the border with Sălaj County, 10 km (6.2 mi) northwest of Cehu Silvaniei.

The river Oarța flows through the commune's three villages.

This Maramureș County location article is a stub.