Grădinari is a commune in Olt County, in the Oltenia region of Romania. It is composed of four villages: Grădinari, Petculești, Runcu Mare and Satu Nou.
The commune is located in southern Romania, within Olt County, whose administrative centre is the city of Slatina. Oltenia, the historical region in which Grădinari lies, occupies the south-western part of the country, between the Olt River and the Danube.
Grădinari is a rural administrative unit rather than a town, and its four constituent villages form the whole of the commune. No further details about its population, economy or landmarks are recorded in the available source material.