Lü Ji may refer to:
King Yong Ji of Shang, recorded as Lü Ji in oracle bones Duke Ding of Qi, personal name Lü Ji Lü Ji (painter) (born 1477), Chinese painter of flower and bird works during the Ming Dynasty Lü Ji (composer) (1909–2002), Chinese composer, writer on music, music educator, and administrator
See also Lu Ji (disambiguation)