Medfield Meadow Lots is a small protected wetland meadow area in Medfield, Massachusetts, within the Charles River floodplain. Covering 16 acres, it includes Pratt Meadow, Perry Meadow, and Hinsdale Meadow, and its low-lying river setting makes it accessible only by canoe or kayak. The land became an open space reserve in 1968 through a donation by Henry Lee Shattuck. As part of a broader partnership among nonprofit organizations and public agencies, it helps preserve the natural and ecological character of the Charles River floodplain as one protected piece of a larger conservation network.