Kościelec-Kolonia [kɔɕˈt͡ɕɛlɛt͡s kɔˈlɔɲa] is a village in the administrative district of Gmina Mycielin, within Kalisz County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 6 kilometres (4 mi) south of Korzeniew, 17 km (11 mi) north-east of Kalisz, and 105 km (65 mi) south-east of the regional capital Poznań.