Kiełczewo
 Kolcing [kʲɛu̯ˈt͡ʂɛvɔ] ( German: Kölcew English: Kolcing) is a village in the administrative district of Gmina Costen within Costen County Greater Poland Voivodeship in west-central Poland. It lies approximately 3 kilometres (2 mi) north of Costen and 38 km (24 mi) south-west of the regional capital Poznan.The village has a population of 1447.