The Hallertau or Holledau is an area in Bavaria, Germany.
[1] According to the International Hop Growing Convention, Germany produces roughly one third of the world's hops (used as flavoring and stabilizers during beer brewing), over 80% of which are grown in the Hallertau.
Hallertau is roughly located between the cities of Ingolstadt, Kelheim, Landshut, Moosburg, Freising and Schrobenhausen.
The region is defined by the hop-planting area in Bavaria.
This Bavaria location article is a stub.