Acilia-Castel Fusano-Ostia Antica is a municipality located in the Lazio region of central Italy. It is situated on the coast of the Tyrrhenian Sea, positioned between the cities of Rome and Fiumicino.
The area is characterized by its coastal geography and historical proximity to the ancient port of Ostia Antica. While it serves as a contemporary residential and coastal location, it remains geographically linked to the archaeological heritage of the surrounding region.