Hagia Sophia is a UNESCO World Heritage Site in Istanbul, Turkey. It was built in 537 as the Greek Orthodox patriarchal cathedral, later becoming a Roman Catholic cathedral, then a Sunni mosque, then a museum. It currently functions as a mosque.

Look up Hagia Sophia or Aya Sofya in Wiktionary, the free dictionary.

Hagia Sophia or Saint Sophia may also refer to:

• The Greek for Holy Wisdom, a concept in Christian theology

• SS Sussex, an 1896 cross-English Channel passenger ferry also known as Aghia Sophia

• Ayasofya Mosque (disambiguation)
• Sancta Sophia College, University of Sydney, Australia
• Sofia (disambiguation)
• Sofia Church (disambiguation)
• Sophia (disambiguation)
• Santa Sofia (disambiguation)

This disambiguation page lists articles associated with the title Hagia Sophia.
If an internal link led you here, you may wish to change the link to point directly to the intended article.