Manuel Alves Grande River
Area bathed by the Manuel Alves Grande river basin
Location
Country	Brazil
Physical characteristics
Source
• location	Tocantins and Maranhão states
Mouth	Tocantins River
Length	234,87 km[1]

The Manuel Alves Grande River is a river of Tocantins and Maranhão states, dividing the north and northeast regions of Brazil. It is a tributary of the Tocantins River.

• List of rivers of Tocantins
• List of rivers of Maranhão

• Plano de Manejo Manuel Alves Grande
• Brazilian Ministry of Transport (Tocantins)
• Brazilian Ministry of Transport (Maranhão)

7°26′32″S 47°35′18″W / 7.44222°S 47.58833°W / -7.44222; -47.58833