the name of two Austrian composers. Johann (1804–49), a leading composer of waltzes; known as Strauss the Elder. His best-known work is the Radetzky March (1838). Johann (1825–99), son of Strauss the Elder; known as Strauss the Younger and as the waltz king. He composed many famous waltzes, such as The Blue Danube (1867) and Tales from the Vienna Woods (1868). He is also noted for the operetta Die Fledermaus (1874).