Keira is a variant of the given name Kira. It may also refer to:
- Keira (given name)
- Keira Knightley (born 1985), an English actress
- Saint Cera of Ireland, a 7th century abbess
- The electoral district of Keira, in New South Wales, Australia
- Mount Keira, Wollongong, New South Wales, Australia
- The Keira dynasty, rulers of Darfur (17th-20th centuries)
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