The Kyushu Seido-kai is a Japanese yakuza organization based in Fukuoka from 2006 to 2013. Founded as a Dojin-kai splintergroup with 380 active members, the gang was headquartered in Omuta, and it was known for its shooting war with the Dojin-kai and the civilian casualties caused by its war. In 2013, the gang ended its war with the Dojin-kai and announced its dissolution.