Wiertelaki [vjɛrtɛˈlaki] is a village in the administrative district of Gmina Brąszewice, within Sieradz County, Łódź Voivodeship, in central Poland. It lies approximately 4 kilometres (2 mi) north-west of Brąszewice, 26 km (16 mi) west of Sieradz, and 79 km (49 mi) west of the regional capital Łódź.