| Aabach | |
| Pushpin Map: | Germany |
| Pushpin Map Caption: | Mouth |
| Mouth Location: | Hessel |
| Mouth Coordinates: | 52.0141°N 8.1511°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | North Rhine-Westphalia |
| Length: | 15.3km (09.5miles) |
Aabach is a small river in the Ems river system, of North Rhine-Westphalia, Germany. It flows into the Hessel near Versmold.