Jacques Grippa (Grivegnée, March 30, 1913– Forest, August 30, 1990) was a Belgian politician, member of the resistance during World War II and communist.
In 1930, he studied engineering at the University of Liège and became a member of the Belgian Communist Party.
During World War II, Grippa was a member of the resistance.
In 1962, he was removed from the Belgian Communist Party because he was more endeared to Maoism.
Together with fellow former members, he founded a new Marxist–Leninist party, but which quickly faded out after only a few years.