Kołdów [ˈkɔu̯duf] is a village in the administrative district of Gmina Błaszki, within Sieradz County, Łódź Voivodeship, in central Poland. It lies approximately 4 kilometres (2 mi) north of Błaszki, 24 km (15 mi) north-west of Sieradz, and 73 km (45 mi) west of the regional capital Łódź.