This is a partial list of watercourses draining into Hudson Bay and ths making up part of the Hudson Bay watershed.

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Those with mouths in Nunavut:

• Chesterfield Inlet
  • Baker Lake
    • Aberdeen Lake
      • Lake Dubawnt
    • Yathkyed Lake
      • Kazan River
        • Angikuni Lake
          • Ennadai Lake
            • Kasba Lake

• Dawson Inlet
  • Kaminak Lake

• Maguse Lake
  • North Hemik Lake

• Tha-anne River
  • Tatinnai Lake
  • Thaolintoa Lake
  • South Henik Lake

• Thlewiaza River
  • Edehon Lake
    • Nueltin Lake
      • Hicks Lake
      • Putahow Lake
      • Kasmere Lake

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Those with mouths in Manitoba:

• Caribou River
  • Caribou Lake

• Seal River
  • Nejanilini Lake
    • Baralzon Lake
  • Shethanei Lake
    • Stony Lake
      • Munroe Lake
      • North Seal River
  • Tadoule Lake
    • South Seal River
      • Big Sand Lake

• North Knife River
• South Knife River
  • Etawney Lake

• Churchill River
  • Northern Indian Lake
    • Southern Indian Lake
      • Barrington Lake
      • Granville Lake
        • Keewatin River
          • Goldsand Lake
            • Lynn Lake
        • Laurie Lake
        • Russell Lake
        • Highrock Lake
          • Sisipuk Lake
            • Loon River
              • Kamuchawn Lake
            • Reindeer River
              • Reindeer Lake
                • Lac Brochet
                  • Misty Lake
                    • Cochrane River
                      • Wollaston Lake
                        • Geikie River
                          • Highrock Lake
                • Wathaman Lake
                  • Wathaman River
                    • Upper Foster Lake
                      • Daly Lake
                  • Macoun Lake
                • Nokomis Lake
                • Oliver Lake
              • Brabant Lake

• Nelson River
  • Lake Winnipeg
    • Saskatchewan River
      • St. Mary River included St. Mary Lake , Lower St. Mary Lake and St. Mary Reservoir
      • Belly River
      • Waterton River
    • Red River of the North

...to be continued

See also: Rivers of the Americas