Alessandra Ferri OMRI is an Italian prima ballerina. She danced with the Royal Ballet (1980–1984), American Ballet Theatre (1985–2007) and La Scala Theatre Ballet (1992–2007) and as an international guest artist, before temporally retiring on 10 August 2007, aged 44, then returning in 2013. She was eventually granted the rank of prima ballerina assoluta.

The Royal Ballet is a British internationally renowned classical ballet company, based at the Royal Opera House in Covent Garden, London, England. The largest of the five major ballet companies in Great Britain, the Royal Ballet was founded in 1931 by Dame Ninette de Valois. It became the resident ballet company of the Royal Opera House in 1946, and has purpose-built facilities within these premises. It was granted a royal charter in 1956, becoming recognised as Britain's flagship ballet company.