Mielec County (Polish: powiat mielecki) is a unit of territorial administration and local government (powiat) in Subcarpathian Voivodeship, south-eastern Poland.

Its administrative seat and largest town is Mielec, which lies 50 kilometres (31 mi) north-west of the regional capital Rzeszów.

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

The only other towns in the county are Radomyśl Wielki, lying 16 km (10 mi) south-west of Mielec, and Przecław, 11 km (7 mi) south of Mielec.

The county covers an area of 880.21 square kilometres (339.9 sq mi).