Illbach
Illbach stands for
Place names:
- Illbach (Geiselhöring) , district of the town of Geiselhöring , Straubing-Bogen district, Bavaria
- Illbach (Pleiskirchen) , part of the municipality of Pleiskirchen , Altötting district, Bavaria
- Illbach (Winhoring) , district of the municipality of Winhoring , Altötting district, Bavaria
- Illbach (Reinheim) (formerly Eulbach / Ulbach), Hofgut / Weiler, to Reinheim, Darmstadt-Dieburg district, Hesse
River:
- Illbach in the canton of Valais (Switzerland), see Illgraben