Wingspread is a conference center and house in Wind Point, Wisconsin, United States. Designed by Frank Lloyd Wright, it was built between 1938 and 1939 for the businessman Herbert Fisk Johnson Jr., the president of S.C. Johnson. With a floor area of 14,000 square feet (1,300 m2), it is one of the largest residences designed by Wright, who also called the building the last of his Prairie style houses. Since 1960, the property has been a conference center operated by the Johnson Foundation. The property is listed on the National Register of Historic Places and is designated a National Historic Landmark.