| Marcal | |
| River | |
| Country | Hungary |
|---|---|
| Source | Bakony |
| - location | Sümeg |
| - elevation | 240 m (787 ft) |
| Mouth | Rába |
| - location | Győr |
| Length | 100 km (62 mi) |
The Marcal is a right tributary of the Rába which rises near Sümeg in the Bakony region of western Hungary. The river flows north and reaches Ukk on the Little Hungarian Plain. It follows a path similar to the Rába, and in many places the two rivers are only a kilometer apart. The two rivers meet at Győr.
In October 2010, the Marcal was contaminated in a chemical spill by red mud and suffered complete loss of aquatic life.
Coordinates: 47°38′N 17°32′E / 47.633°N 17.533°E