Ma Yin (馬殷) (853-December 2, 930), courtesy name Batu (霸圖), formally King Wumu of Chu (楚武穆王), was a warlord late in the Chinese dynasty Tang Dynasty who became the first ruler of the Five Dynasties and Ten Kingdoms Period state Chu and the only one who carried the title of "king." He initially took control of the Changsha region in 896 after the death of his predecessor Liu Jianfeng, and subsequently increased his territorial hold to roughly modern Hunan and northeastern Guangxi, which became the territory of Chu.