Look up Reconstruction:Proto-Germanic/ahwō in Wiktionary, the free dictionary.

Aach is a German-language toponym and frequent element in place names and may refer to:

• Aach (toponymy)

• Ach (Blau), also known as Aach, tributary of the Blau River, Germany
• Aach, tributary of the Rietaach, near Altstätten, Switzerland
• Memminger Aach, tributary of the Danube, Bavaria, Germany
• Tributaries of the Rhine which flow into Lake Constance:
  • Aach (Arbon), near Arbon, Arbon district, Switzerland
  • Aach, near Romanshorn, Arbon district, Switzerland
  • Radolfzeller Aach, near Radolfzell, Baden-Württemberg, Germany
  • Seefelder Aach, also called Linzer Aach, Unteruhldingen, Germany
    • Deggenhauser Aach, left tributary near Salem, Baden-Württemberg, Germany
  • Stockacher Aach, near Bodman, Baden-Württemberg, Germany
    • Mahlspürer Aach, left tributary near Stockach, Baden-Württemberg, Germany
• Zwiefalter Aach, tributary of the Danube near Zwiefaltendorf, Baden-Württemberg, Germany

• Aach, Baden-Württemberg, Germany
• Aach, a district of Dornstetten, Baden-Württemberg, Germany
• Aach, Rhineland-Palatinate, Germany
• Aach, a town in the community of Braunau, Switzerland
• Aach, a town in the municipality of Tübach, Switzerland
• Aach im Allgäu, a district of Oberstaufen, Bavaria, Germany
• Aach-Linz, a district of Pfullendorf, Baden-Württemberg, Germany
• Achh is Village & Union Council in Kharian Tehsil Gujrat District Punjab Pakistan

• Aach (surname), a German surname derived from the toponym

• ACH (disambiguation), including Ach
• Ache (disambiguation)
• Aachen, North Rhine-Westphalia, Germany

This disambiguation page lists articles associated with the title Aach.
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