Pietna [ˈpjɛtna] is a village in the administrative district of Gmina Krapkowice, within Krapkowice County, Opole Voivodeship, in south-western Poland.

Historically located in Upper Silesia, in the Prudnik Land.

The village's name likely originates from a term meaning 'foothill/hill' or a location known for its drinking water sources.

Historical records also mention the village as Piethna and Pietien.

On September 9, 1947, the village, then administratively part of Prudnik County, was officially named Pietna in Polish.