Chachalnia [xaˈxalɲa] is a village in the administrative district of Gmina Zduny, within Krotoszyn County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 5 kilometres (3 mi) east of Zduny, 6 km (4 mi) south of Krotoszyn, and 93 km (58 mi) south-east of the regional capital Poznań.

The village has an approximate population of 250.