(b Nuremberg, 2 Aug 1916; d Munich, 25 June 1993). German tenor. He studied in Munich with Paul Bender and in Oslo with Ragnvald Bjärne. In 1936 he made his début as Pinkerton with the Bayerische Landesbühnen, a touring ensemble; engagements followed in Augsburg (1939–42), Dresden (1942–3) and Oslo (1943–4). He joined the Berlin Staatsoper in 1946 and in 1949 was engaged by the Staatsoper in Munich. Hopf sang the tenor part in the performance of Ludwig van Beethoven's Ninth Symphony under Wilhelm Furtwängler that reopened Bayreuth in 1951, and also sang Walther; between 1961 and 1966 he returned as Siegfried, Tannhäuser and Parsifal. At the 1954 Salzburg Festival he sang Max (Der Freischütz). He appeared at Covent Garden (1951–3) as Radames and Walther and at the Metropolitan, where he made his début in 1952 as Walther and sang mostly in the Wagner repertory. He made his La Scala début in 1963 as Siegfried and first appeared at the Teatro Colón in 1958 as Walther. His repertory also included Otello and the Emperor (Die Frau ohne Schatten), which he recorded under Karl Böhm. His strong, reliable voice can also be heard as Walther on Herbert von Karajan's recording of Die Meistersinger from Bayreuth.
From The Grove Book of Opera Singers in Oxford Reference.