9th Congress

9th Congress may refer to:


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