The Caples'–Ringlings' Estates Historic District comprises the John Ringling Estate, the Edith and Charles Ringling and Hester Ringling Lancaster Sanford Estates, and the Ellen and Ralph Caples Estate as a U.S. historic district located in Sarasota, Florida. The historic designation was given on December 15, 1982. The district is bounded by Sarasota Bay, Tamiami Trail, Parkview Avenue, and North Shore Drive. The district contains 18 historic buildings and 5 structures as well as contributing factors. Architecture, landscape architecture, art, sculpture, as well as social and humanitarian factors are cited on the 1980 nomination form as the significant qualification factors for listing the district. The district was the first National Register of Historic Places nomination for a site in the city of Sarasota. The estates associated with three of the homes are the part of the New College of Florida campus that is west of Bay Shore Road, all except that of John Ringling.