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
Merrimack River watershed
Map showing
Cape Cod Bay and other major waters off Massachusetts
Blackstone River watershed
- Seekonk River (Rhode Island)
Connecticut River watershed
Housatonic River watershed
- Housatonic River
- Blackberry River (Connecticut)
- Konkapot River
- Green River
- Williams River
- Hop Brook
- West Branch Housatonic River
- Southwest Branch Housatonic River
- East Branch Housatonic River