Liu Ji may refer to:
- Liu Ji (14th century) (1311-1375), Chinese military strategist, officer, statesman and poet of the late Yuan and early Ming dynasty
- Liu Ji (general) (757-810), Chinese general of the Tang Dynasty
- Liu Ji (Tang Dynasty) (died 646), chancellor during the reign of Emperor Taizong of Tang
- Liu Ji (Jingyu) (181-229), politician, Eastern Wu during Three Kingdoms period