Alex Callinicos (born 1950 in South Rhodesia (now Zimbabwe)) is a Marxist intellectual and a member of the Central Committee of the Socialist Workers Party. He is a professor of politics at the University of York and a member of the editorial board of International Socialism and British correspondent of Actuel Marx. A prolific writer for both the revolutionary and the academic presses he is a descendent of the famous historian Lord Acton. During the Second World War his father was active in the Greek Resistance to Nazi occupation.

Callinicos first became involved in revolutionary politics as a student and his first writing for the International Socialists, forerunners of the SWP, was an anlysis of the student movement of the period. His later writing soon established him in socialist and academic circles as an expert on southern Africa and the French philosopher Louis Althusser.

Widely praised as a talented writer and speaker, he was soon elected to the Central Committee of the SWP, a position he retains today. In recent years he has been responsible for the SWP's international work, but he has seen a number of splits in the International Socialist Tendency's affiliated groups.

He participated in the Counter-Summit to the IMF/World Bank Meeting in Prague, September 2000 and the demonstration against the G8 in Genoa, June 2001.

He is a contributor to J. Bidet and E. Kouvelakis, eds., Dictionnaire Marx Contemporain (Paris: Presses Universitaires de France, 2001), and has written a number of articles in New Left Review. Other works include;

• 1976: Althusser's Marxism (editor). London: Pluto Press.
• 1982: Is There a Future for Marxism?. London: Macmillan.
• 1983: Marxism and Philosophy (Oxford Paperbacks). Oxford: Clarendon.
• 1989: Marxist Theory (Oxford Readings in Politics & Government S.) (editor). Oxford: Oxford university press.
• 1990: Trotskyism. Minneapolis: University of Minnesota Press.
• 1991: Against Postmodernism: a Marxist critique. Cambridge: Polity Press.
• 2000: Equality (Themes for the 21st Century S.). Cambridge: Polity Press.
• 2002: Against The Third Way. Cambridge: Polity Press.
• Marxism & The New Imperialism
• The Revolutionary Ideas Of Karl Marx
• Theories And Narratives
• An Anti-Capitalist Manifesto
• New Mandarins of American Power: The Bush Administration's Plans for the World
• The Anti-Capitalist Movement And The Revolutionary Left
• Making History: Agency, Structure, and Change in Social Theory (Historical Materialism Book Series, 3)
• Social Theory:Historical Introduction
• Theories And Narratives: Reflections On The Philosphy Of History
• The Changing Working Class: Essays on Class Structure Today (with Chris Harman)
• The Revenge of History: Marxism and the East European Revolutions
• The Revolutionary Road to Socialism
• Race and Class
• Against the Third Way
• Socialists in the Trade Unions
• Southern Africa After Soweto (with John Rogers)
• Southern Africa After Zimbabwe
• The Great Strike: the Miner's Strike
• South Africa: The Road to Revolution
• Between Apartheid and Capitalism: Conversations with South African Socialists (editor)
• South Africa Between Reform and Revolution