Whydah may refer in English to:
- The Viduidae birds, also called indigobirds
- Ouidah, city and colonial fort in present Benin
- Kingdom of Whydah, which included Ouidah but was headquartered in Savi
- Whydah Gally, a ship captained by pirate "Black Sam" Bellamy that was wrecked in 1717 and discovered in 1984