Nieciszów [ɲɛˈt͡ɕiʂuf] is a village in the administrative district of Gmina Oleśnica, within Oleśnica County, Lower Silesian Voivodeship, in south-western Poland.

It lies approximately 5 kilometres (3 mi) south-west of Oleśnica, and 21 kilometres (13 mi) east of the regional capital Wrocław.