Gergei is a comune in the Province o Cagliari in the Italian region Sardinie, locatit aboot 50 kilometre (31 mi) north o Cagliari. As o 31 Dizember 2004, it haed a population o 1,413 an a aurie o 36.1 square kilometre (13.9 sq mi).
Gergei borders the follaein municipalities: Barumini, Escolca, Gesturi, Isili, Mandas, Serri.
