Ropczyce-Sędziszów County (Polish: powiat ropczycko-sędziszowski) is a unit of territorial administration and local government (powiat) in Subcarpathian Voivodeship, south-eastern 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 largest town is Ropczyce, which lies 28 kilometres (17 mi) west of the regional capital Rzeszów.

The only other town in the county is Sędziszów Małopolski, lying 6 km (4 mi) east of Ropczyce.

The county covers an area of 548.89 square kilometres (211.9 sq mi).