Kociołki [kɔˈt͡ɕɔu̯ki] is a village in the administrative district of Gmina Błaszki, within Sieradz County, Łódź Voivodeship, in central Poland. It lies approximately 5 kilometres (3 mi) north-east of Błaszki, 21 km (13 mi) north-west of Sieradz, and 69 km (43 mi) west of the regional capital Łódź.