Whitsunday, also known as Whitsun, is the celebration in England of the Christian feast of Pentecost, observed 7 weeks after Easter.
Whitsunday, Whitsundays and Whit Sunday may also refer to:
One of the Scottish term days, always falling in modern times on 15 May
Australia Whitsunday Islands, an island group in Queensland Whitsunday Islands National Park in Queensland Whitsunday Island, the largest of the Whitsunday Islands Whitsunday Region, a local government area located in North Queensland, Australia Whitsundays, Queensland, a locality in the Whitsunday Region which includes the Whitsunday Islands Electoral district of Whitsunday, an electoral division in the Legislative Assembly of Queensland, Australia Shire of Whitsunday, a former local government area located in North Queensland
See also Whitsunday wire eel, found in Australia