Henri Dutilleux (French: [ɑ̃ʁi dytijø]; 22 January 1916 – 22 May 2013) was a French composer active mainly in the second half of the 20th century. His work, which garnered international acclaim, followed in the tradition of Maurice Ravel, Claude Debussy, Albert Roussel and Olivier Messiaen, but in an idiosyncratic style.