The Rippowam River is a river in Fairfield County, Connecticut, USA. It drains a watershed area of 37.5 square miles (97 km2) and flows for 17 miles (27 km) from Ridgefield to Long Island Sound, which it enters in Stamford's harbor.
Streamflow in the Rippowam River is controlled by several small dams. The Turn-of-River Bridge, which is listed on the National Register of Historic Places, crosses it. The river has been dammed to form both the North Stamford Reservoir in North Stamford, and the Laurel Reservoir on the Stamford/New Canaan border.
- Martin Silva, Mill River and Mill Pond Habitat Restoration Project, Rippowam River, Stamford, Connecticut: Geotechnical Analysis, Bioengineering Group, Inc., for U.S. Army Corps of Engineers, May 2003
- 01209901 RIPPOWAM RIVER NEAR STAMFORD, CT, U.S. Geological Survey
- "National Register Information System". National Register of Historic Places. National Park Service. 2009-03-13.
- "Mill River Park Plan, Stamford, CT". The Trust for Public Land.