Kaźmierzyn [kaʑˈmjɛʐɨn] is a village in the administrative district of Gmina Waganiec, within Aleksandrów County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies 2 kilometres (1 mi) south-east of Waganiec, 14 km (9 mi) south-east of Aleksandrów Kujawski, and 31 km (19 mi) south-east of Toruń.