9th Congress

9th Congress may refer to:


 * 9th Congress of the Philippines (1992–1995)
 * 9th Congress of the Russian Communist Party (Bolsheviks) (1920)
 * 9th Congress of the Sammarinese Communist Party (1976)
 * 9th National Congress of the Chinese Communist Party (1969)
 * 9th National Congress of the Communist Party of Vietnam (2001)
 * 9th National Congress of the Kuomintang (1963)
 * 9th National Congress of the Lao People's Revolutionary Party (2011)
 * 9th National People's Congress (1998–2003)
 * 9th United States Congress (1805–1807)