The Australian Dictionary of Biography (ADB or AuDB) is a national co-operative enterprise founded and maintained by the Australian National University (ANU) to produce authoritative biographical articles on eminent people in Australia's history. Initially published in a series of twelve hard-copy volumes between 1966 and 2005, the dictionary has been published online since 2006 by the National Centre of Biography at ANU, which has also published Obituaries Australia (OA) since 2010.