Lake Avernus
General data
- Name: Lake Avernus
- Water system: Planet Earth
- Water type: Natural lake
- Progression: Planet Earth
- Climates: Subtropical
- Continents: Europe
- Countries: Italy
Lake Avernus (Italian: Lago d'Averno) is a volcanic crater lake located in the Avernus crater in the Campania region of southern Italy, around 4 kilometres west of Pozzuoli. It is near the volcanic field known as the Phlegraean Fields (Campi Flegrei) and comprises part of the wider Campanian volcanic arc. The lake is roughly circular, measuring two kilometres in circumference and 60 metres deep.