| Markha | |
| Other Name: | Марха |
| Source1 Location: | Lena Plateau |
| Source1 Coordinates: | 61.9956°N 122.0044°W |
| Mouth: | Lena |
| Mouth Coordinates: | 60.5867°N 123.2892°W |
| Mouth Elevation: | 112m (367feet) |
| Length: | 346km (215miles) |
| Discharge1 Avg: | 21m3/s |
| Basin Size: | 8910km2 |
| Pushpin Map: | Russia Sakha Republic#Russia |
| Pushpin Map Caption: | Mouth location in Yakutia, Russia |
The Markha (Russian: Марха) is a river of Sakha Republic, Russia, a tributary of the Lena. It is long, and has a drainage basin of .
It has its source in a small lake of the Lena Plateau and flows across a further five small lakes in its upper reaches. The Markha heads mainly towards the SSE along its course, parallel to the Markhachan in the east. Towards its final stretch it bends southeastwards and joins the left bank of the Lena 1928km (1,198miles) from its mouth. The river freezes in the second half of October and stays under ice until the middle of May. There are about 800 lakes in its basin.
The largest tributary of the Markha is the 184km (114miles) long Namyldzhylakh from the right.[1]
