Józefowo (Polish pronunciation: [juzɛˈfɔvɔ]) is a village in the administrative district of Gmina Joniec, within Płońsk County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) south of Joniec, 15 km (9 mi) south-east of Płońsk, and 50 km (31 mi) north-west of Warsaw.