The Boca Chita Key Historic District is a U.S. historic district with in the Biscayne National Park in Miami-Dade County, Homestead, Florida. Located on the northwest section of Boca Chita Key, delimited by Biscayne Bay in the north and west and a half ruined stone wall on its southern side, it contains three historic buildings and the Boca Chita Lighthouse. On 1 August 1997, it was listed in the National Register of Historic Places for its architectural, historical and recreational values.