Wayne County Training School, alternately known as the Wayne County Training School for Feeble Minded Children or the Wayne County Child Development Center, was a state-funded institution for people with developmental disabilities, located in Northville Township, Michigan. Construction of the institution began in 1923, and it opened in 1926. Expansion on the property continued until 1930. The school closed its doors on October 18, 1974. Most of the buildings were left abandoned until 1998, when the land was sold and the abandoned institution was demolished.