| Marka | |
| Mouth Coordinates: | 53.0242°N 7.7449°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
| Length: | 28.7km (17.8miles) |
| Basin Size: | 142km2 |
Marka is a long river in Lower Saxony, Germany. At its confluence with the Ohe west of Friesoythe, the river Sagter Ems is formed.