Aschaffenburg (Low Franconian: Aschebersch) is a Landkreis (district) in Bavaria, Germany.

After the Roman retreat, the region became subject to Alemanni and Franks before becoming a part of the Electorate of Mainz.

The districts of Aschaffenburg and Alzenau were established in 1862, half a century after the state of Bavaria had annexed the region.

The district is located in the extreme northwest of Bavaria and bounded by Hesse on two sides.

The town of Aschaffenburg is not included in the district ( kreisfrei ), but is nonetheless its administrative seat.