The Herbert Hoover National Historic Site is a unit of the National Park System in West Branch, Iowa, United States. The buildings and grounds are managed by the National Park Service to commemorate the life of Herbert Hoover, the 31st president of the United States. The park was established in 1965, shortly after it was named a National Historic Landmark. It now encompasses 186.8 acres (75.6 ha).

West Branch is a city in Cedar and Johnson counties in the U.S. state of Iowa. The population was 2,509 as of the 2020 census. It is the birthplace of the only American president born in Iowa, Herbert Hoover.