Dong Zhao (156 – 4 July 236),[a] courtesy name Gongren, was an official of the state of Cao Wei during the Three Kingdoms period of China.
Dong Zhao was a xiaolian and served as a county official in his early years under the warlord Yuan Shao before being promoted to a military adviser.
In 219, while Guan Yu was attacking Fancheng, Sun Quan agreed to send reinforcements to help the entrapped Cao Ren.
To keep things secret, Dong Zhao proposed a trick of tying the messages written on paper onto arrows which were fired into the city.
When Cao Ren's troops heard that Sun Quan was willing to send reinforcements, the army's morale was boosted and eventually culminated in Guan Yu's defeat.