Łask County (Polish: powiat łaski) is a unit of territorial administration and local government (powiat) in Łódź Voivodeship, central 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 Łask, which lies 32 kilometres (20 mi) south-west of the regional capital Łódź.

The county covers an area of 617.38 square kilometres (238.4 sq mi).

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