| Duke Xi of Chen 陳僖公 | |
| Succession: | 7th ruler of Chen |
| Reign: | 831–796 BC |
| Predecessor: | Duke You of Chen |
| Successor: | Duke Wu of Chen |
| Full Name: | Gui Xiao (媯孝) |
| Father: | Duke You of Chen |
| Issue: | Duke Wu of Chen |
| Death Date: | 796 BC |
| House: | Gui |
| Dynasty: | Chen |
| Posthumous Name: | Duke Xi (僖公) |
Duke Xi of Chen (; died 796BC), personal name Gui Xiao, was a duke of the Chen state. He succeeded his father, Duke You, to the Chen throne.
Chen Xiao was the son of Ning, who was posthumously known as Duke You. Prince Xiao became duke of Chen upon his father's death in 832BC.
He died in 796BC and was posthumously honored under the name Chén Xīgōng. He was succeeded by his son Prince Ling, who was posthumously known as Duke Wu.