Jean Pierre Raffin-Dugens (3 December 1861 – 26 March 1946) was a French politician.
He was a socialist, internationalist and pacifist.
During World War I (1914–1918) he was one of the few national deputies to remain true to the principle that the workers of the world should not support wars between their countries arranged by political and military leaders.
After attending an international pacifist conference in Switzerland in 1916 he was subject to a storm of criticism.