The Kłodnica is a river in Upper Silesia, southern Poland.

Kłodnica may also refer to: Kłodnica, Lublin Voivodeship, a village in east Poland Kłodnica, Lubusz Voivodeship, a village in west Poland Kłodnica, Kędzierzyn-Koźle, a district of the city of Kędzierzyn-Koźle, Poland