致公堂是中国洪门天地会在海外的分支。早在19世纪50年代,美国旧金山就出现了广德堂(1852)、洪顺堂(1853)、协议堂(1853)、安松堂(1854)等洪门组织。太平天国运动失败后,“其余党复以海外为尾闾,三合会独盛,盖以此故,其后统名为致公堂。全美国十余万华人中,其挂名籍于致公者,殆十而七八”。60年 To the court is China Hongmen world will be overseas branches. As early as the 1850s, the United States San Francisco appeared Guangde Hall (1852), Hong Shun Tang (1853), the agreement hall (1853), Anson Church (1854) and other Hongmen organizations. After the failure of the Taiping Campaign, “the remaining parties have taken overseas as the tail and the triad society has prospered, and the subsequent name has been titled as” Cause Hall. “Of the more than 100,000 Chinese in the United States, , Almost ten and seven eight ”. 60 years