List of rivers of Massachusetts (U.S. state).

All Massachusetts rivers flow to the Atlantic Ocean. The list is arranged by drainage basin from north to south, with respective tributaries indented under each larger stream's name, arranged travelling upstream along the larger stream.

By drainage

Gulf of Maine north of Cape Ann

• Blackwater River
  • Little River

• Merrimack River
  • Back River (Merrimack River tributary)
  • Powwow River
    • Back River (Lake Attitash)
    • Back River (Powwow River tributary)
  • Artichoke River
  • Indian River
  • East Meadow River
  • Little River
  • Cochichewick River
  • Shawsheen River
  • Spicket River
  • Concord River
    • Assabet River
    • Sudbury River
  • Beaver Brook
  • Salmon Brook
  • Nashua River
    • Nissitissit River
    • Squannacook River
    • Still River
    • South Nashua River
      • Quinapoxet River
      • Stillwater River
    • North Nashua River
      • Whitman River
      • Phillips Brook
  • Souhegan River (New Hampshire)
    • South Branch Souhegan River
• Parker River
  • Little River
  • Mill River
• Rowley River
  • Roger Island River
  • Egypt River
• Eagle Hill River
• Ipswich River
  • Miles River
  • Martins Brook
    • Skug River
• Castle Neck River
• Essex River
  • Farm Creek
  • Walker Brook
• Annisquam River
  • Jones River
  • Little River
  • Mill River

Massachusetts Bay

• Danvers River
  • North River
  • Bass River
• Forest River
• Saugus River
  • Pines River
  • Mill River
• Mystic River
  • Chelsea Creek
  • Island End River
  • Malden River
  • Alewife Brook
    • Little River
  • Aberjona River

• Charles River
  • Muddy River
  • Stop River
  • Mill River
  • West Branch Charles River
  • Stony Brook (Waltham)
  • Stony Brook (Boston) (covered culvert)
• Neponset River
  • Canton River, a.k.a. East Branch Neponset River
  • Mother Brook
• Weymouth Fore River
  • Monatiquot River
    • Cochato River
    • Farm River
      • Blue Hill River
• Weymouth Back River
  • Fresh River
  • Mill River
    • Old Swamp River
• Weir River
  • Crooked Meadow River
    • Plymouth River
• Bound Brook (In 1640, Bound Brook formed the border between the Massachusetts Bay and Plymouth colonies.)
  • Aaron River
• North River
  • East Branch North River
  • Indian Head River
    • Drinkwater River
  • West Branch North River
• South River

Cape Cod Bay

• Green Harbor River
• Back River
  • Pine Point River
  • Great Wood Island River
  • Little Wood Island River
  • Duck Hill River
    • Bourne Wharf River
• Bluefish River
• Jones River
• Town Brook
• Eel River
• Boat Meadow River
• Pamet River
• Little Pamet River
• Herring River (Wellfleet, Massachusetts)

Nantucket Sound

• Mitchell River
• Oyster Pond River
• Andrews River
• Red River
• Swan Pond River
• Bass River
• Parkers River
• Centerville River
  • Bumps River
• Marstons Mill River
• Little River
• Santuit River
• Mashpee River
• Quashnet River
• Childs River
  • Seapit River
• Coonamesset River

Martha's Vineyard

• Tiasquam River

Buzzards Bay

• Wild Harbor River
• Pocasset River
• Back River
• Wareham River
  • Crooked River
  • Broad Marsh River
  • Agawam River
  • Wankinco River
• Weweantic River
  • Sippican River
    • East Branch Sippican River
    • West Branch Sippican River
• Mattapoisett River
• Nasketucket River
• Acushnet River
  • Keene River
• Little River
• Slocums River
  • Paskamanset River
• Westport River
  • East Branch Westport River
    • Shingle Island River
      • Copicut River
  • West Branch Westport River

Narragansett Bay

• Taunton River
  • Quequechan River
  • Assonet River
    • Cedar Swamp River
  • Segreganset River
  • Three Mile River
    • Rumford River
    • Wading River
  • Mill River
    • Snake River
      • Canoe River
  • Forge River
  • Cotley River
  • Nemasket River
  • Winnetuxet River
  • Matfield River
    • Satucket River
      • Poor Meadow Brook
        • Shumatuscacant River
          • Stream River
    • Salisbury Plain River
  • Town River
    • Hockomock River
• Lees River
• Cole River
• Kickamuit River
• Warren River (Rhode Island)
  • Barrington River (Rhode Island)
    • Runnins River
  • Palmer River
    • East Branch Palmer River
    • West Branch Palmer River

• Seekonk River (Rhode Island)
  • Ten Mile River
    • Wilde River
    • Sevenmile River
    • Bungay River
  • Blackstone River
    • Abbott Run
    • Peters River
    • Mill River
    • Branch River (Rhode Island)
      • Clear River (Rhode Island)
        • Nipmuc River (Rhode Island)
          • Chockalog River
    • West River
    • Mumford River
    • Quinsigamond River
    • Middle River
      • Kettle Brook

Long Island Sound

• Thames River (Connecticut)
  • Shetucket River (Connecticut)
    • Quinebaug River
      • French River
        • Little River
          • South Fork Little River
• Connecticut River
  • Farmington River (Connecticut)
    • East Branch Farmington River (Connecticut)
      • Hubbard River
    • West Branch Farmington River
      • Clam River
        • Buck River
      • Fall River (Farmington River tributary)
  • Scantic River

    

  • Westfield River
    • Great Brook
    • Little River (Westfield River, South)
    • West Branch Westfield River
    • Middle Branch Westfield River
    • Little River (Westfield River, North)
    • Swift River
      • North Branch Swift River
  • Mill River (Springfield, Massachusetts)
    • North Branch Mill River
    • South Branch Mill River
  • Chicopee River
    • Quaboag River
      • East Brookfield River
        • Sevenmile River
          • Cranberry River
        • Fivemile River
    • Ware River
      • Swift River
        • Quabbin Reservoir
          • West Branch Swift River
          • East Branch Swift River
          • East Branch Fever Brook
          • West Branch Fever Brook
          • Middle Branch Swift River
      • Prince River
      • Burnshirt River
      • East Branch Ware River
      • West Branch Ware River
  • Stony Brook
  • Manhan River
    • North Branch Manhan River
  • Mill River (Northampton, Massachusetts)
    • East Branch Mill River
    • West Branch Mill River
  • Fort River
  • Mill River (Hatfield, Massachusetts)
  • Mill River (Hadley, Massachusetts)
  • Sawmill River
  • Deerfield River
    • Green River (Deerfield River tributary)
    • South River
    • Bear River
    • North River
      • East Branch North River
      • West Branch North River
    • Chickley River
    • Cold River
      • Green River (Cold River tributary)
  • Fall River (Connecticut River tributary)
  • Millers River
    • Tully River
      • East Branch Tully River
      • West Branch Tully River
    • Otter River
    • Priest Brook
    • North Branch Millers River

• Housatonic River
  • Blackberry River (Connecticut)
    • Whiting River
  • Konkapot River
    • Umpachene River
  • Green River
  • Williams River
  • Hop Brook
    • Mad River
  • West Branch Housatonic River
    • Southwest Branch Housatonic River
  • East Branch Housatonic River

New York Harbor

• Hudson River (New York)
  • Kinderhook Creek
  • Hoosic River
    • Green River
    • North Branch Hoosic River

Alphabetically