Antoniówka [antɔˈɲufka] is a village in the administrative district of Gmina Ostrówek, within Lubartów County, Lublin Voivodeship, in eastern Poland. It lies approximately 5 kilometres (3 mi) east of Ostrówek, 14 km (9 mi) north of Lubartów, and 38 km (24 mi) north of the regional capital Lublin.