Dachau (German pronunciation: [ˈdaxaʊ]) is a Landkreis (district) in Bavaria, Germany.

The district extends from the northwestern suburbs of Munich to the so-called Dachauer Land.

The growing Munich metropolitan area is advancing more and more into the district's territory.

The arms include a red zigzag line on white background, which was the heraldic figure of the Wittelsbach family during the 12th and 13th century.

In the upper part of the arms the blue and white checkered pattern of Bavaria is displayed.