Ostia

Ostia may refer to:

• Ostia (Rome), a municipio (also called Ostia Lido or Lido di Ostia) of Rome
• Ostia Antica, a township and port of ancient Rome
• Ostia Antica (district), a district of the commune of Rome

• Ostia (film), a 1970 Italian comedy film directed by Sergio Citti
• A song by Sepultura from the 2006 album Dante XXI
• A song by Coil from the 1986 album Horse Rotorvator
• A fictional region of the country Lycia in Fire Emblem
• A fictional city in the manga series Negima; see List of Negima! Magister Negi Magi characters

• The plural form of ostium, an anatomical term meaning a small opening
• The plural form of ostium (sponges), a pore present in sponges