Oleśnica County (Polish: powiat oleśnicki) is a unit of territorial administration and local government (powiat) in Lower Silesian Voivodeship, south-western Poland. It was created on January 1, 1999, as a result of the Polish local government reforms passed in 1998. The county covers an area of 1,049.7 square kilometres (405.3 sq mi). Its administrative seat is the town of Oleśnica, and it also contains the towns of Syców, Twardogóra, Bierutów and Międzybórz.
As of 2019 the total population of the county is 107,090. The most populated towns are Oleśnica with 37,169 inhabitants and Syców is 10,397 inhabitants.
The county is subdivided into eight gminas (one urban, four urban-rural and three rural). These are listed in the following table, in descending order of population.
