Ianca is a commune in Olt County, within the historical region of Oltenia in southern Romania. It is located in the western part of the county, near the Danube, and is composed of two villages: Ianca and Potelu.
The commune lies in a flat, low-lying area of the Romanian Plain close to the river. Its administrative status is that of a commune, meaning it is governed by a local council and mayor rather than holding city status.