Kornelimünster/Walheim is the southernmost Stadtbezirk (borough) of Aachen, Germany, and borders the Eifel area of North Rhine-Westphalia, as well as Belgium. It became part of Aachen in 1972, after all of the communities surrounding the city were reorganized administratively. The countryside is called Münsterländchen.

Kornelimünster Abbey, also known as Abbey of the Abbot Saint Benedict of Aniane and Pope Cornelius, is a Benedictine monastery that has been integrated since 1972. The abbey is located in Aachen in North Rhine-Westphalia in Germany.