List of rivers of Rondônia

List of rivers in Rondônia (Brazilian State).

The list is arranged by drainage basin, with respective tributaries indented under each larger stream's name and ordered from downstream to upstream. Rondônia is located entirely within the Amazon Basin.

By Drainage Basin

Amazon River (Pará, Amazonas)
- Tapajós River (Amazonas)
  - Juruena River (Mato Grosso)
    - Iquê River
- Madeira River
  - Aripuanã River (Amazonas)
    - Roosevelt River
      - Capitão Cardoso River
        Tenente Marques River
      - Da Dúvida River
  - Ji-Paraná River (Machado River)
    - Preto River
      - Miriti River
      - Jacundá River
    - Juruazinho River
      - Juruá River
    - Machadinho River
      - Belém River
    - São João River
    - Anari River
    - Jaru River
    - Urupá River
    - Muqui River
      - Palha River
      - Lacerda de Almeida River
      - Acangapiranga River
    - Rolim de Moura River
    - Comemoração River
    - Pimenta Bueno River
      - Uimeerê River
      - São Pedro River
      - Do Ouro River
      - Tanaru River
  - Jamari River
    - Verde River
    - Candeias River
      - Preto de Candeias River
      - Das Garças River
    - Preto do Crespo River
    - Branco River
    - Guaiamã River
      - Quatro Cachoeiras River
      - Pardo River
    - Alto Jamari River
  - Caracol River
  - Jaciparaná River
    - São Francisco River
    - Branco River
    - Formoso River
  - Caripunás River
  - Lourenço River
  - Cutia River
    - Mutumparaná River
  - Abunã River
    - Vermelho River
  - Mamoré River
    - Pacaás Novos River
      - Ouro Preto River
      - Novo River
      - Negro River
    - Sotério River
    - Guaporé River
      - Cautário River
      - São Domingos River
      - Cantarinho River
      - São Miguel River
        São Francisco River
        
        Cabixi River
      - Branco River
      - São Simão River
      - Colorado River
      - Mequéns River
      - Verde River
        São João River
        Mequéns River
      - Corumbiara River
      - Escondido River
      - Branco River (Cabixi River)
- Purus River (Amazonas)
  - Ipixuna River