The following is a list of rivers in Wyoming, United States.

East of the continental divide

Missouri River watershed

• Gallatin River
• Madison River
  • Firehole River
  • Gibbon River
• Yellowstone River
  • Gardner River
  • Lamar River
    • Slough Creek
  • Clarks Fork of the Yellowstone River
  • Wind River/Bighorn River
    • Little Bighorn River
    • Little Wind River
      • North Fork Popo Agie River
      • Middle Fork Popo Agie River
      • Little Popo Agie River
        • Roaring Fork Creek
    • Shoshone River
    • Greybull River
    • Shoshone River
    • Gooseberry Creek (Wind River/Bighorn River)
    • Owl Creek
    • Muddy Creek
    • Nowood River
      • Tensleep Creek
      • Paint Rock Creek
  • Tongue River
    • Big Goose Creek (near Sheridan)
      • Little Goose Creek (near Sheridan)
    • Little Tongue River (Dayton)
  • Powder River
    • Clear Creek
      • Rock Creek
• Little Missouri River
• Cheyenne River
  • Belle Fourche River
• Niobrara River
• North Platte River
  • Encampment River
  • Medicine Bow River
    • Rock Creek
    • Little Medicine Bow River
  • Sweetwater River
  • Laramie River
    • Little Laramie River
      • North Fork Little Laramie River
        • Libby Creek
      • Middle Fork Little Laramie River
      • South Fork Little Laramie River
    • North Laramie River
    • Chugwater Creek

South Platte River watershed

• Crow Creek
• Lodgepole Creek

West of the continental divide

Colorado River watershed

• Green River
  • Big Sandy River
  • Blacks Fork
    • Smiths Fork
    • Hams Fork
  • Yampa River
    • Little Snake River
      • Roaring Fork Little Snake River
      • North Fork Little Snake River
  • New Fork River

Columbia River watershed

• Snake River
  • Henrys Fork (ID)
    • Fall River
  • Salt River
    • Swift Creek
    • Cottonwood Creek
  • Greys River
    • Little Greys River
  • Hoback River
    • Granite Creek
    • South Fork Hoback River
  • Gros Ventre River
  • Lewis River
  • Heart River
  • Wolverine Creek
  • Plateau Creek

Great Salt Lake watershed

• Bear River (Great Salt Lake)

Alphabetically

• Bear River (Great Salt Lake)
• Belle Fourche River
• Big Goose Creek (near Sheridan)
• Big Sandy River
• Bighorn River
• Blacks Fork
• Cheyenne River
• Chugwater Creek
• Clarks Fork of the Yellowstone River
• Clear Creek
• Cottonwood Creek
• Crow Creek
• Dead Indian Creek
• Encampment River
• Fall River
• Firehole River
• Gallatin River
• Gardner River
• Gibbon River
• Gooseberry Creek
• Granite Creek
• Green River
• Greybull River
• Greys River
• Gros Ventre River
• Hams Fork
• Heart River
• Henrys Fork
• Hoback River
• Lamar River
• Laramie River
• Lewis River
• Libby Creek
• Little Bighorn River
• Little Goose Creek (near Sheridan)
• Little Greys River
• Little Laramie River
• Little Medicine Bow River
• Little Missouri River
• Little Snake River
• Little Tongue River (near Dayton)
• Little Wind River
• Lodgepole Creek
• Madison River
• Medicine Bow River
• Middle Fork Little Laramie River
• Middle Fork Little Snake River
• Middle Fork Popo Agie River
• Muddy Creek
• New Fork River
• Niobrara River
• North Fork Little Laramie River
• North Fork Little Snake River
• North Fork Popo Agie River
• North Laramie River
• North Platte River
• Nowood River
• Owl Creek
• Paint Rock Creek
• Plateau Creek
• Powder River
• Roaring Fork Creek
• Roaring Fork Little Snake River
• Rock Creek (Clear Creek)
• Rock Creek (Medicine Bow River tributary)
• Salt River
• Shell Creek
• Shoshone River
• Slough Creek
• Smiths Fork
• Snake River
• South Fork Hoback River
• South Fork Little Laramie River
• South Platte River
• Sweetwater River
• Swift Creek
• Tensleep Creek
• Tongue River
• Wind River
• Wolverine Creek
• Yellowstone River