Liu Ji (1 July 1311 – 16 May 1375), courtesy name Bowen, better known as Liu Bowen, was a Chinese military strategist, philosopher, and politician who lived in the late Yuan and early Ming dynasties. He was born in Qingtian County (present-day Wencheng County, Wenzhou, Zhejiang). He served as a key advisor to Zhu Yuanzhang, the Hongwu Emperor, the founder of the Ming dynasty, in the latter's struggle to overthrow the Yuan dynasty and unify China proper under his rule. Liu is also known for his prophecies and has been described as the "Divine Chinese Nostradamus". He and Jiao Yu co-edited the military treatise known as the Huolongjing (Fire Dragon Manual).