Gmina Zduny is a rural gmina (administrative district) in Łowicz County, Łódź Voivodeship, in central Poland. Its seat is the village of Zduny, which lies approximately 10 kilometres (6 mi) north-west of Łowicz and 47 km (29 mi) north-east of the regional capital Łódź.
The gmina covers an area of 128.53 square kilometres (49.6 sq mi), and as of 2006 its total population is 6,098.
Gmina Zduny contains the villages and settlements of Bąków Dolny, Bąków Górny, Bogoria Dolna, Bogoria Górna, Bogoria Pofolwarczna, Dąbrowa, Jackowice, Łaźniki, Maurzyce, Nowy Złaków, Pólka, Retki, Rząśno, Strugienice, Szymanowice, Urzecze, Wierznowice, Wiskienica Dolna, Wiskienica Górna, Zalesie, Zduny, Złaków Borowy and Złaków Kościelny.
Gmina Zduny is bordered by the gminas of Bedlno, Bielawy, Chąśno, Kiernozia, Łowicz and Żychlin.