Unirea is a commune in Dolj County, in the Oltenia region of Romania. It is composed of a single village, also named Unirea, and had a population of 4,620 people.
The commune lies in the southern part of the country, within Dolj County, whose administrative seat is the city of Craiova. As a commune, Unirea is one of the smaller rural administrative units of the county, with its entire population living in the one village that makes up the commune.