The following is a partial list of rivers in the state of Montana in the United States.

East of Continental Divide

Missouri River watershed

• Missouri River
  • Jefferson-Beaverhead-Red Rock River
    • Ruby River
    • Big Hole River
      • Wise River
      • Roe River (shortest in the world)
    • Boulder River
  • Madison River
  • Gallatin River
    • East Gallatin River
  • Sixteenmile Creek
  • Dearborn River
  • Smith River
  • Sun River
  • Belt Creek
  • Marias River
    • Cut Bank Creek
    • Two Medicine River
      • Birch Creek
        • Dupuyer Creek
    • Willow Creek
    • Teton River
  • Arrow Creek
  • Cow Creek
  • Judith River
    • Dry Wolf Creek
  • Musselshell River
    • Sacagawea River
    • North Fork Musselshell River
    • South Fork Musselshell River
  • Milk River
    • Big Sandy Creek
  • Redwater River
  • Poplar River
  • Big Muddy Creek
  • Yellowstone River
    • Shields River
    • Boulder River
    • Sweet Grass Creek
    • Stillwater River
    • Clarks Fork of the Yellowstone River
    • Bighorn River
      • Little Bighorn River
    • Tongue River
    • Powder River

Saskatchewan River watershed

• Belly River
• St. Mary River
• Waterton River

West of Continental Divide

• Clark Fork River
  • Bull River
  • Vermilion River
  • Flathead River
    • Jocko River
    • Whitefish River
      • Stillwater River
  • Saint Regis River
  • Bitterroot River
  • Blackfoot River
• Kootenai River
  • Yaak River
  • Fisher River

See also

• List of rivers in the United States