Lucrinus Lacus or Lucrine Lake (; ) is a lake in Campania, southern Italy. It is less than one kilometre to the south of Lake Avernus and is separated from the Gulf of Pozzuoli by a narrow strip of land. Also known as the maricello ("little sea"), the size of present-day Lago Lucrino was significantly reduced by the rise of the volcanic cone of Monte Nuovo in 1538.Antonio Parascandola. "Il Monte Nuovo ed il Lago Lucrino", in: Bollettino della Società dei Naturalisti in Napoli, vol. LV, 1944-1946. The lake's modern dimensions are long and about deep.
