Staw Ujazdowski [ˈstaf ujazˈdɔfski] is a village in the administrative district of Gmina Nielisz, within Zamość County, Lublin Voivodeship, in eastern Poland. It lies approximately 21 kilometres (13 mi) north-west of Zamość and 57 km (35 mi) south-east of the regional capital Lublin.