Cilla is an English female given name, originally the diminutive form of Priscilla and less frequently Drusilla. People. Cilla Black (1943–2015), English singer, actress and entertainer. Cilla Fisher (born 1952), ex-member of the folk music group The Singing Kettle. Cilla McQueen (born 1949), New Zealand poet. Cilla Naumann (born 1960), Swedish author and journalist. Cilla Snowball(born 1985), British businessperson in advertising. Fictional and mythological characters. Cilla Battersby-Brown, a character in the British soap opera Coronation Street.
https://en.wikipedia.org/wiki/Cilla