| Duke Yi of Chen 陳夷公 | |
| Succession: | 9th ruler of Chen |
| Reign: | 780–778 BC |
| Predecessor: | Duke Wu of Chen (father) |
| Successor: | Duke Ping of Chen (brother) |
| Full Name: | Gui Yue (媯說) |
| Father: | Duke Wu of Chen |
| Death Date: | 778 BC |
| House: | Gui |
| Dynasty: | Chen |
| Posthumous Name: | Duke Yi (夷公) |
Duke Yi of Chen (; reigned 780 BC – died 778 BC), personal name Gui Yue, was a duke of the Chen state.
Duke Yi succeeded his father Duke Wu of Chen, who died in 781 BC. Duke Yi's reign coincided with that of King You of Zhou, the last king of Western Zhou. Duke Yi died after only three years of reign, and was succeeded by his younger brother, Xie (Duke Ping of Chen).