There have been six Directors-General of the National Library of Australia, the largest reference library in Australia, in the last 47 years.
The National Library of Australia (NLA), formerly the Commonwealth National Library and Commonwealth Parliament Library, is the largest reference library in Australia, responsible under the terms of the National Library Act 1960 for "maintaining and developing a national collection of library material, including a comprehensive collection of library material relating to Australia and the Australian people", thus functioning as a national library. George Chandler Harrison Bryan AO Warren Horton AM Jan Fullerton AO Anne-Marie Schwirtlich Dr Marie-Louise Ayres 1974 1980 1980 1985 1985 1999 1999 2010 2017 2011 2017 present 
