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). As of 2006 its total population is 50,874, out of which the population of Łask is 18,684 and the rural population is 32,190.
The county is subdivided into five gminas (one urban-rural and four rural). These are listed in the following table, in descending order of population.