Robert Morris Aitken, CM (born August 28, 1939) is a Canadian composer and flautist. He began his career as a teenager playing in a number of orchestras, notably becoming the youngest principal flautist in the history of the Vancouver Symphony Orchestra in 1958 at the age of 19. In 1971, he abandoned ensemble performance to pursue a highly successful solo career. He has appeared as a soloist with major symphony orchestras throughout North America, Europe and Asia and has made more than 40 commercial recordings.