Ostia
Ostia referred
- Ostia (Rome) , a district of Rome, the XIII municipality
- Ostia Antica , the ancient port city near Rome
- Lido di Ostia , the beach south of the Tiber estuary near Rome
- Diocese of Ostia , a suburbicarian diocese
- Ostia (film) a film by Sergio Citti and Pier Paolo Pasolini
- the plural of ostium , the opening of an organ in anatomy
