Łęczyca Voivodeship (Polish: Województwo łęczyckie) was a unit of administrative division and local government in Poland from the 14th century until the partitions of Poland in 1772–1795. It was part of Greater Poland Province, and its capital was in Łęczyca. The voivodeship had the area of 4,080 square kilometers, divided into three counties. Local sejmiks took place at Łęczyca. The city of Łódź, which until the 19th century was a small town, for centuries belonged to Łęczyca Voivodeship.
Zygmunt Gloger in his monumental book Historical Geography of the Lands of Old Poland gives a detailed description of Łęczyca Voivodeship:
"Following the testament of Boleslaw Krzywousty, the Land of Łęczyca was a separate duchy, ruled by princes of the Piast dynasty (...) King Wladyslaw Lokietek reunited the duchy with Poland, making it a separate voivodeship. Local residents were used to their own legal system, so King Władysław II Jagiełło decided to keep a separate official there. In 1418, the szlachta of Łęczyca established its own rules, the 27 Articles of Constitutiones Terrae Lanciciensis generales (...)
Łęczyca Voivodeship had five senators: the Voivode of Łęczyca, the Castellan of Łęczyca, and the Castellans of Brzeziny, Inowlodz, and Konary (...) Of the three counties, the largest one was Łęczyca County, which covered more than half of the area of the voivodeship. Local sejmiks took place at Łęczyca, where four deputies were elected to the Sejm, and additional two to the Greater Poland Tribunal at Piotrków Trybunalski. Main starostas resided at Łęczyca, Inowlodz, Zgierz and Klodawa".
^Atlas historyczny Polski. Województwo sieradzkie i województwo łęczyckie w drugiej połowie XVI wieku. Część I. Mapy, plany (in Polish). Warszawa: Instytut Historii Polskiej Akademii Nauk. 1998. p. 3.
