Łowicz County (Polish: powiat łowicki) 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 Łowicz, which lies 48 kilometres (30 mi) north-east of the regional capital Łódź.
The county covers an area of 987.13 square kilometres (381.1 sq mi). As of 2006, its total population was 82,338, out of which the population of Łowicz was 30,204 and the rural population was 52,134.
Łowicz County is bordered by Sochaczew County to the north-east, Skierniewice County to the south-east, Brzeziny County to the south, Zgierz County to the south-west, Łęczyca County and Kutno County to the west, and Gostynin County to the north-west.
The county is subdivided into 10 gminas (one urban and nine rural). These are listed in the following table, in descending order of population.