Rzgów is a town in Łódź East County, Łódź Voivodeship, in central Poland, with 3,382 inhabitants (2020). It is situated on the Ner River within the Sieradz Land. The town is a member of Cittaslow.

Łódź Voivodeship is a voivodeship (province) of Poland. It was created on 1 January 1999 out of the former Łódź Voivodeship (1975–1999) and the Sieradz, Piotrków Trybunalski and Skierniewice Voivodeships and part of Płock Voivodeship, pursuant to the Polish local government reforms adopted in 1998. The province is named after its capital and largest city, Łódź, pronounced.