Johnson School, also known as Warwick No. 203, is a historic rural school building located near Millsboro, Sussex County, Delaware. It was built in the early 1920s, and is a one-story, three-bay, frame structure with wood shingles in the Colonial Revival style. It has a gable roof and features a pedimented entrance portico supported by Doric order columns and plain pilasters. The Johnson School was a separate educational facility for Delaware Moors, and was attended by some children from families of the state-recognized Nanticoke Indian Association who claimed Nanticoke descent.
It was added to the National Register of Historic Places in 1979.