Variations on an Elizabethan Theme (also seen as Variations on Sellinger's Round) is a set of variations for string orchestra, written collaboratively in 1952 by six English composers: Lennox Berkeley, Benjamin Britten, Arthur Oldham, Humphrey Searle, Michael Tippett and William Walton. Imogen Holst also played an important role in orchestrating the overall work, but she did not write a variation of her own. The variations were written to celebrate the forthcoming coronation of Queen Elizabeth II in June 1953. (Benjamin Britten also wrote his opera Gloriana in honour of this occasion.)