Ansei Purge (安政の大獄 Ansei no taigoku?) was a multi-year event in Japanese history of the Edo period. In 1858–1860, the Tokugawa shogunate got rid of those who did not support its foreign trade policies.
The Ansei Purge was ordered by Ii Naosuke on behalf of the bakufu.
The purge was carried out in an effort to quell opposition to trade treaties with the United States, Russia, Great Britain, France and the Netherlands.
Over 100 people were victims of the crackdown. Men were forced out of positions within the bakufu, or from han leadership or from the Imperial Court in Kyoto. They included