Other
- Constantia (orchid), an orchid genus
- Constantia (gastropod) a genus of sea snails, wentletraps
- Constantia (wine), a South African wine
- Constantia (typeface), a new typeface part of Windows Vista
- Constantia, Lucknow Palace of Claude Martin in Lucknow
- Chevrolet Constantia, an automobile marketed in South Africa from 1969 to 1978
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