Gierlachów [ɡʲɛrˈlaxuf] is a village in the administrative district of Gmina Dwikozy, within Sandomierz County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 4 kilometres (2 mi) south of Dwikozy, 4 km (2 mi) north-east of Sandomierz, and 85 km (53 mi) east of the regional capital Kielce.