The Namana (Russian: Намана; Yakut: Намана) is a river in Yakutia (Sakha Republic), Russia. It is the 17th longest tributary of the Lena with a length of 444 kilometres. Its drainage basin area is 16,900 square kilometres.
There are no settlements located by the river, but there is industrial production of table salt in the basin. Balagannakh village is located near the mouth of the Namana in the Lena. The river flows near a landfill where there have been leaks leading to oil pollution of its waters.
