Activists, artists, critics, politicians, theorists, writers.
- Laidler, Percival (Percy) (1884 - 1958), Activist, Bookseller and Writer
- Lambert, Eric (1918 - 1966), Novelist
- Lane, William (1861 - 1917), Activist, Editor and Journalist
- Lang, John Dunmore (1799 - 1878), Editor
- Lang, John Thomas (Jack) (1876 - 1975), Parliamentarian, Politician and Writer
- Lawson, Henry (1867 - 1922), Activist, Poet and Writer
- Lawson, Louisa (1848 - 1920), Editor and Journalist
- Lenin, Vladimir (1870 - 1924), Activist, Theorist and Writer
- Lindsay Gordon, J, Poet
- Lindsay, Jack
- see Lindsay,Jack (1900 - 1990), Activist and Writer - Lindsay,Jack (1900 - 1990), Activist and Writer
- Lockwood, Rupert (1908 - 1997), Activist, Communist and Journalist
- Luxemburg, Rosa (1870 - 1919), Theorist