Kędzierzyn-Koźle County (Polish: powiat kędzierzyńsko-kozielski) is a unit of territorial administration and local government (powiat) in Opole Voivodeship, south-western Poland.

It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998.

Its administrative seat and only town is Kędzierzyn-Koźle, which lies 40 kilometres (25 mi) south-east of the regional capital Opole.

The county covers an area of 625.28 square kilometres (241.4 sq mi).

These are listed in the following table, in descending order of population.