Das Balsas River (Tocantins)

{{Infobox river

| name = Balsas River

| native_name ={{native name|pt|Rio Balsas}}

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| pushpin_map = Brazil

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| river_system = Tocantins River

| progression =

| source1_location = Tocantins state

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| mouth_location = Tocantins

| mouth_coordinates = {{coord|-9.88209|-47.84045|display=inline,title}}

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| subdivision_type1 = Country

| subdivision_name1 = Brazil

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The Balsas River is a river of Tocantins state in central Brazil, a tributary of the Do Sono River.

The river basin includes part of the {{convert|707079|ha}} Serra Geral do Tocantins Ecological Station, a strictly protected conservation unit created in 2001 to preserve an area of the Cerrado.{{citation|language=Portuguese |title=Unidade de Conservação: Estação Ecológica Serra Geral do Tocantins|publisher=MMA: Ministério do Meio Ambiente |url=http://sistemas.mma.gov.br/cnuc/index.php?ido=relatorioparametrizado.exibeRelatorio&relatorioPadrao=true&idUc=76|accessdate=2016-05-28}}