Keira is the modern English form of the Irish *Ciara* — from the Old Irish *ciar* ("dark, black") — feminine of Ciar, an ancient Irish king's name. **A top-150 US baby name since 2004**. **Keira Knightley (born 1985)** — **English actress; two Academy Award nominations — Best Actress for *Pride & Prejudice* (2005) at age 20 (the third-youngest Best Actress nominee in history) and Best Supporting Actress for *The Imitation Game* (2014)**. **Defined the 2000s-2010s English period-drama heroine with Elizabeth Bennet in *Pride & Prejudice* (2005), Cecilia Tallis in *Atonement* (2007), Sabina Spielrein in *A Dangerous Method* (2011), and Anna Karenina in Joe Wright's *Anna Karenina* (2012)**. **Elizabeth Swann across all five *Pirates of the Caribbean* films (2003-2017) — the franchise grossed $4.5+ billion worldwide**. **Officer of the Order of the British Empire (2018) for services to drama and charity**. **Keira Walsh (born 1997)** — English footballer; FIFA Best Award nominee 2023; helped England win the UEFA Women's Euro 2022. **Keira Lewis** — British footballer. **Saint Ciara of Killinaboy** — Irish 7th-century saint.
Featured throughout 2000s-2020s English cinema.
Keira reduces to one — the number of Pride & Prejudice.