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.

Łódź is a city in central Poland and a former industrial centre. It is the capital of Łódź Voivodeship, and is located 120 km (75 mi) south-west of Warsaw. As of 2023, Łódź has a population of 655,279, making it the country's fourth largest city.