Shindo Renmei (Japanese: ) was a terrorist organization composed of Japanese immigrants. It was active in the state of São Paulo, Brazil during the 1940s. Refusing to believe the news of Japan's surrender at the end of World War II, some of its most fanatic members used violence against those who did surrender. Shindo Renmei killed at least 23 people, all of whom were Japanese-Brazilians, and wounded 147 others.