Rued Langgaard (Danish: [ʁuðˀ ˈlɑŋɡ̊ɒːˀ]; born Rud Immanuel Langgaard; 28 July 1893 – 10 July 1952) was a late-Romantic Danish composer and organist. His then-unconventional music was at odds with that of his Danish contemporaries and was recognized only 16 years after his death.