The Ambergau is a historic landscape and natural region unit in the Innerste Uplands in southern Lower Saxony, Germany.
It is a basin, about 10 x 10 kilometres across, with 18 settlements (there were 31 in the Middle Ages), the centre and capital of which since the 13th century is the town of Bockenem.
The basin, with its fertile agricultural fields, is surrounded by the wooded ridges of Heber, the Harplage, the Weinberg and the Hainberg.
Amber has its origin in the Proto-Indo-European language and has the word stem mb(h), was means something like dampness.
The basin-shaped valley is today a largely treeless arable farming region that has probably always been used by man for that purpose.