Constantia is the name of several things:

People

• Flavia Julia Constantia, daughter of Roman Emperor Constantius Chlorus and Flavia Maximiana Theodora
• Constantia Czirenberg (1605-1653) was a Polish singer

Places

• Constantia (CDP)
• Constantia, New York
• Constantia, Cape Town
• Salamis, Cyprus was renamed Constantia in the 4th Century.
• Constanţa or Constantia (Κωνστάντια), Romania

Other

• Constantia (orchid), an orchid genus
• Constantia (wine), a South African wine
• Constantia (typeface), a new typeface part of Windows Vista