Black Hamburg, Black Muscat (or Muscat Hamburg) is a red Vitis vinifera grape variety derived from the crossing of the Schiava Grossa and Muscat of Alexandria by R. Snow of Bedforshire, England in 1850 according to the Vitis International Variety Catalogue. It is known under a variety of local names such as Golden Hamburg, and Black Hamburg in the US; Muscat de Hambourg (or Hamburgh) in France; Moscato di Amburgo in Italy; and Muscat Gamburgskiy in Russia and former Soviet Union countries. Confusingly, Black Hamburg is also used as a synonym for its maternal parent. It is commonly produced as table wine but in California's Central Valley it has been used in the production of dessert wine. As a dessert wine it can be highly aromatic with a rich coloring. In the US it is grown in wine appellations in California, Virginia, Oregon, Texas, and Washington. In Canada, it is also found on Vancouver Island.;
The Great Vine, Vitis vinifera 'Schiava Grossa' (synonym: Black Hamburg), is now 250 years old and is the largest grape vine in the world. It was planted in 1768 while Lancelot 'Capability' Brown was in charge of the gardens at Hampton Court.
Muscat Hamburg wines tend to be light and rather neutral, although some richer, dessert-style wines are made from overripe grapes.