Stamna (Greek: Σταμνά) is a village and a community in the municipal unit of Aitoliko in the southern part of Aetolia-Acarnania, Greece.

It is located on a chain of low hills that separate the river Acheloos to the west from the bay of Aitoliko to the southeast.

The Ionia Odos motorway (Missolonghi - Amfilochia) passes east of the village.

The community Stamna consists of the villages Stamna, Stathmos Stamnas (1.5 km east, near the former railway station) and Kefalovrysos (4 km southeast, at the bay).

Stamna had a train station on the former railway from Missolonghi to Agrinio.