Vonitsa is a town in the northwestern part of Aetolia-Acarnania in Greece, seat of the municipality of Aktio-Vonitsa. Population 4,916 (2011). The beach town is situated on the south coast of the Ambracian Gulf, and is dominated by a Venetian fortress on a hill.

 Vonitsa is 13 kilometres (8 miles) southeast of Preveza, 18 kilometres (11 miles) northeast of Lefkada (city) and 90 kilometres (56 miles) northwest of Agrinio. The Greek National Road 42 (Lefkada – Amfilochia) passes through Vonitsa.