8th Congress may refer to:

• 8th Congress of the Philippines (1987–1992)
• 8th Congress of the Russian Communist Party (Bolsheviks) (1919)
• 8th National Congress of the Chinese Communist Party (1956)
• 8th National Congress of the Kuomintang (1957)
• 8th National Congress of the Lao People's Revolutionary Party (2006)
• 8th National People's Congress (1993–1998)
• 8th United States Congress (1803–1805)

This disambiguation page lists articles associated with the title 8th Congress.
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