The Forestdale School, also known as the Greenville School, is a historic one-room school building at 87 Falmouth-Sandwich Road (Massachusetts Route 130) in Sandwich, Massachusetts. The single story wood frame structure was built in 1878, and is one of a small number of surviving district school buildings on Cape Cod. It has Greek Revival features, including gable end returns, and transom windows over the two entrances. The building was listed on the National Register of Historic Places in 1997.