Tremestieri Etneo () is a (municipality) in the Metropolitan City of Catania in the Italian region Sicily, located about southeast of Palermo and about north of Catania.
Tremestieri Etneo borders the following municipalities: Catania, Gravina di Catania, Mascalucia, Pedara, San Giovanni la Punta, San Gregorio di Catania, Sant'Agata li Battiati.