Kornelimünster (Kölsch: Mönster) is a town in the rural Münsterländchen area of Kornelimünster/Walheim, a district of Aachen, Germany.

The Kornelimünster Abbey was founded in 814 on the Inde River by Benedict of Aniane (750–821), at the suggestion of Louis the Pious, son and successor of Charlemagne.

In the middle of the 9th century, the cloister was given imperial immediacy and subsequently came into possession of a large swath of area surrounding the church.

[3] In 1971 Kornelimünster joined together with other area communities such as Breinig, Mulartshütte, Roetgen, Venwegen and Walheim to argue in favor of creating a Münsterland district.

Instead, on 1 January 1972, the area was divided as follows: the Kornelimünster and Walheim communities were combined into the Kornelimünster/Walheim district of Aachen, while Breinig and Venwegen went to Stolberg.