Marjorie Faith Barnard AO (16 August 1897 – 8 May 1987) was an Australian novelist and short story writer, critic, historian - and librarian. She went to school and university in Sydney, and then trained as a librarian. She was employed as a librarian for two periods in her life (1923–1935 and 1942–1950), but her main passion was writing.
Her History of Australia, published in 1963, was well-reviewed at the time. One reviewer compared it favourably with histories by Keith Hancock, A.G.L. Shaw, Max Crawford and Douglas Pike, writing that she "writes good narrative prose and avoids, on the whole, analysis, although she can provide good commonsense summaries (as on the convict tradition or the Federation movement) when she wishes".