Duke Cheng of Qi (Chinese: 齊成公; pinyin: Qí Chéng Gōng), personal name Lü Yue or Lü Tuo, was duke of the Qi state from 803 BC to 795 BC.
[1][2] Duke Cheng succeeded his father, Duke Wen, as ruler of Qi.
He reigned for 9 years and died in 795 BC.
He was succeeded by his son, Duke Zhuang I.
[1][2] Sons: