State Library of South Australia

The State Library of South Australia, or SLSA, formerly known as the Public Library of South Australia, located on North Terrace, Adelaide, is the official library of the Australian state of South Australia. It is the largest public research library in the state, with a collection focus on South Australian information, being the repository of all printed and audiovisual material published in the state, as required by legal deposit legislation. SLSA's holdings include rare books, maps, manuscripts, and ephemera. It holds the "South Australiana" collection, which documents South Australia from pre-European settlement to the present day, as well as general reference material in a wide range of formats, including digital, film, sound and video recordings, photographs, and microfiche.

, the director of the library is Megan Berghuis, who was appointed in 2024, after the retirement of Geoff Strempel.

The library collection was based on a number of forerunning societies and subscription libraries, until the South Australian Institute was incorporated in 1855, and a new building opened in 1861 to house the Institute's collection of books. The Institute Building opened in 1861. The Institute became a statutory body named the Public Library, Museum and Art Gallery in 1884, the year that the first purpose-built library building opened – now the Mortlock Chamber, designed by colonial architect E. J. Woods. In 1967 the Bastyan Wing was opened behind the Institute building, and finally in 2003, the glass-foyered Spence Wing, which connected the Bastyan Wing to the Mortlock Wing. The Institute Building and the Mortlock Wing have been state-heritage listed. In August 2025, the library was ranked second in a global literary tourism initiative called "1000 Libraries". Provided by Wikipedia