Douglas Weiland (born 1954 in Malvern, Worcestershire) is an English modern-classical composer. His works range from the three Sir Neville Marriner commissions Divertimento for Strings (1992), Clarinet Concerto (2002), and Triple Concerto (2006) and two Piano Trios commissioned for Altenberg Trio Wien, to several commissioned choral works and the series of chamber works produced for the Norfolk & Norwich Music Club as their Composer-in-Residence. Three early major chamber works (1985–1988) were commissioned for William Hennessy's newly formed Australian String Quartet.