John Rees is a British Trotskyist politician and a member of the Central Committee of the Socialist Workers Party. He is a former editor of International Socialism, National Secretary of the RESPECT coalition, co-founder of the Stop the War Coalition and vice-president (Europe) of the International Campaign Against Aggression on Iraq.

He was top of the RESPECT party list in the West Midlands region for the 2004 European Election, and the RESPECT candidate for the Birmingham Hodge Hill by-election in 2004.

He is the author of numerous books and articles including;

• Trotsky and the Dialectic of History
• The Algebra Of Revolution : Dialectic And The Classical Marxist Tradition
• Socialism And War
• Essays On Historical Materialism (editor)
• In Defence Of October
• The ABC of Socialism
• Imperialism : Globalisation, the State and War
• Twenty-First Century Imperialism
• The Socialist Revolution & the Democratic Revolution
• The Broad Party, the Revolutionary Party & the United Front
• Socialism in the Twenty-First Century