Seijisosaishoku was one of the three most important posts in the Edo bakufu, which was newly established towards the end of the bakufu system in the late Edo period, together with Shogun-kokenshoku (the post for the guardian of shogun) and Kyoto shugoshoku (the military governor of Kyoto).
政事総裁職（せいじそうさいしょく）は、江戸時代後期、幕末に新設された将軍後見職、京都守護職と並ぶ江戸幕府三要職の一つである。