Günzburg is a town in Bavaria, Germany. It is a Große Kreisstadt and the capital of the Swabian district Günzburg. This district was constituted in 1972 by combining the city of Günzburg – which had not previously been assigned to a Kreis – with the district of Günzburg and the district of Krumbach.
Günzburg lies where the river Günz enters the Danube, and has a population of about 20,350.
Legoland Germany is located in Günzburg.