Keira (given name)
Keira  is a feminine given name. It is an Anglicized version of "Ciara" and means "dark haired" in Irish Gaelic.

People named Keira include:
Saint Cera of Ireland, also spelled Keira, 7th-century abbess
Keira Knightley (born 1985), English actress
Keira Lucchesi (born 1989), Scottish actress
Keira Walsh (born 1997), English footballer

Fictional characters include:
Keira, a main character from a 2012 CGI animated film Barbie: The Princess and The Popstar
Keira, a supporting character in the Jak and Daxter series.