Duke Yi

Duke Yi or Yi Gong may refer to the following ancient Chinese rulers:


 * Duke Yǐ of Qi (齊乙公): 10th-century BC ruler of the state of Qi
 * Duke Yì of Qi (齊懿公): 7th-century BC ruler of the state of Qi
 * Duke Yi of Lu
 * Duke Yi of Chen
 * Duke Yi of Wey