Kamionacz [kaˈmjɔnat͡ʂ] is a village in the administrative district of Gmina Warta, within Sieradz County, Łódź Voivodeship, in central Poland. It lies approximately 6 kilometres (4 mi) southeast of Warta, 9 km (6 mi) north of Sieradz, and 54 km (34 mi) west of the regional capital Łódź.