The tributaries of the Brahmaputra River are some of the major rivers of Northeast India. They feed most of the fertile plains in the zone. Several towns and cities have grown along the tributaries of Brahmaputra Rivers. Some of the major tributaries of River Brahmaputra are as follows:

The Raidak River is one of the main right bank tributaries of the Brahmaputra River in the lower course. The river is known as the Wong in its upper course in Bhutan and then the river traverses through the mountainous terrain in Bhutan and again comes back to the plains in India, in the districts of Jalpaiguri and other nearby localities.

Sankosh River rises in northern Bhutan and then flows into the Brahmaputra in the state of Assam in India. In Bhutan, it is known as the Puna Tsang Chhu below the merging of several tributaries near the town of Wangdue Phodrang. The two largest tributaries of Sankosh River are the Mo Chhu and Pho Chhu. These tributaries flow together at Punakha.

Amochu River is a river flowing westward the country of Bhutan. The country is rich with natural inland waters with several rivers and streams. Several small lakes also flow in these hilly areas of the country. The main rivers flowing in this region are Wangchu (Westward), Wangduphodrang Tsang Chu (middle west direction) and Manas (westward).

The Bhareli River is presently known as the Kameng River and flows in Arunachal Pradesh and Jia Bhoreli in Assam. The river originates in the eastern Himalayan Mountains, in Tawang district from the glacial lake below snow capped Gori Chen Mountain.

The Dibang River flows through the Indian state of Arunachal Pradesh. The river goes through its middle course across the Lower Dibang Valley District of Arunachal Pradesh. The Dibang River is an important tributary of the Brahmaputra. The Dibang River and Lohit River merge together and flow along the northern side of the Saikhowa Reserve forest.

The Lohit River originates in eastern Tibet, in the Zayal Chu range and surges through Arunachal Pradesh for two hundred kilometers, before emptying itself in the plains of Assam. Uncontrolled and turbulent is the features of the Lohit River. The Lohit River has derived its name because of its vigorous nature and thus it is also called the river of blood. The lateritic soil of the river forms its surrounding demography. The river flows through the Mishmi Hills, to meet the Siang at the head of the Brahmaputra valley.

The Burhidihing River is one of the major tributaries of the Brahmaputra River. The River Burhidihing flowing at the speed of 103.58m at Khowang. The waters fall from an elevation of 102.11m. This river is highly prone to floods and the previous highest flood level was measured to be 103.92m in1988.