Konstantynowo [kɔnstantɨˈnɔvɔ] is a village in the administrative district of Gmina Waganiec, within Aleksandrów County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 3 kilometres (2 mi) west of Waganiec, 10 km (6 mi) south-east of Aleksandrów Kujawski, and 28 km (17 mi) south-east of Toruń.