Mihăești is a commune in Olt County, in the Muntenia region of Romania. It is located in the southern part of the country, within the historical region of Wallachia.
The commune is composed of two villages, Bușca and Mihăești, with the latter serving as the administrative centre. Like many rural communes in Olt County, it is situated in a predominantly agricultural area of the Romanian plain.
Olt County itself lies in south-western Romania, bordered by the Olt River to the east and the Danube to the south. The county seat is Slatina. Mihăești is one of a number of communes that make up the county's rural administrative structure.