Dame Ninette de Valois, OM, CH, DBE, FRAD, FISTD (6 June 1898 – 8 March 2001) was an Irish-born British dancer, teacher, choreographer and director of classical ballet.

She danced professionally with Serge Diaghilev's Ballets Russes, later establishing The Royal Ballet, one of the foremost ballet companies of the 20th century and one of the world's leading ballet companies.