The Lyndon Baines Johnson Library and Museum, also known as the LBJ Presidential Library, is the presidential library and museum of Lyndon Baines Johnson, the 36th president of the United States (1963–1969). It is located on the grounds of the University of Texas at Austin, and is one of 13 presidential libraries administered by the National Archives and Records Administration. The LBJ Library houses 45 million pages of historical documents, including the papers of President Johnson and those of his close associates and others.

In the United States, the presidential library system is a nationwide network of 16 libraries administered by the Office of Presidential Libraries, which is part of the National Archives and Records Administration (NARA). These are repositories for preserving and making available the papers, records, collections and other historical materials of every president of the United States since Herbert Hoover, the 31st president from 1929–1933. In addition to the library services, museum exhibitions concerning the presidency are displayed.