A former county (c.880) and duchy (1360) and province centred on the city of Angers in the lower Loire Valley of western France, Anjou corresponds largely to the present-day département of Maine-et-Loire.
The title of count of Anjou was held by two distinct dynasties each known as Angevins (angevin is the adjective derived from Anjou): the first, known from the 12th century also as Plantagenets, came to rule England and much of western France, but lost Anjou itself to the French crown in 1206.
The title of count of Anjou was revived by king Louis IX in 1246 for his younger brother Charles, later king of Naples and Sicily. His descendants also ruled Poland and Hungary for a time in the 14th century. The last duke of the line (Charles V of Anjou) died in 1481, and Anjou reverted to the French crown (Louis XI of France).
Anjou is also the name of a town and a district in the Canadian province of Quebec.