- Theorist
- Baracchi, Guido Carlo Luigi (1887 - 1975), Activist, Communist, Editor and Theorist
- Engels, Friedrich (1820 - 1895), Activist, Communist, Theorist and Writer
- George, Henry (1839 - 1897), Activist and Theorist
- Gramsci, Antonio (1892 - 1937), Activist and Theorist
- Kropotkin, Peter (1892 - 1921), Activist and Theorist
- Lenin, Vladimir (1870 - 1924), Activist, Theorist and Writer
- Luxemburg, Rosa (1870 - 1919), Theorist
- Mandel, Ernest (1923 - 1995), Activist and Theorist
- Marx, Karl (1818 - 1883), Activist, Communist, Theorist and Writer
- Sharp, Geoff, Theorist
- Sorel, Georges (1847 - 1922), Theorist
- White, Doug (1933 - ), Theorist
- Trade Union
- Australasian Meat Industry Employees Union (1912 - )
- Australian Workers Union (1905 - )
- Bull, Ted (1914 - 1997), Activist, Communist and Trade Union
- Queensland Shearers' Union (1887 - 1892)
- Trade Union Peak Body
- Australian Council of Salaried & Professional Associations (1956 - 1979)
- Australian Council of Trade Unions (1927 - )
- Australian Labour Federation (1889 - c. 1914)
- Labor Council of New South Wales (1871 - )
- Melbourne Trades Hall (1856 - )
- Melbourne Trades Union Equal Pay Committee (1940 - 1965)
- Trades and Labor Council Queensland (1922 - 1993)