The Charles River Dam is a flood control structure on the Charles River in Boston, Massachusetts, located just downstream of the Leonard P. Zakim Bunker Hill Memorial Bridge, near Lovejoy Wharf, on the former location of the Warren Bridge.

The structure also includes the "Colonel Richard Gridley Locks", named for General George Washington's first army engineer.

Six diesel-powered, 2700 horsepower turbo-charged engines drive six pumps with a combined capacity of about 3.7 million US gallons (14,000 m3) per minute or 8140 cubic feet per second (CFS).

The dam's walkway is the site of the "Charlestown Bells", an interactive art installation by Paul Matisse, consisting of a set of chimes mounted on the railing that passers-by can strike.

The Charles River Dam was once in the shadow of the former Charlestown High Bridge located upstream.