Yao Hong (Chinese: 姚泓; 388–417), courtesy name Yuanzi (元子), was the last emperor of the Qiang-led Later Qin dynasty of China.
After he surrendered, Liu Yu had him delivered to the Eastern Jin capital Jiankang and executed.
This caused many imperial officials to fear Yao Bi's power, and many joined his conspiracy.
Yao Hong's associates, however, heard rumors of the plot and persuaded him not to come out of the palace.
The Jin general Liu Yu, seeing Later Qin's internal unrest as an opportunity, launched a major attack in fall 416 and quickly seized the eastern half of Later Qin, including the important city of Luoyang.
Yao Hong decided to lead an army of several tens of thousands against Liu Yu's main army, commanded by Tan and Shen, but concerned that a branch force commanded by Shen Linzi's brother Shen Tianzi (沈田子), which in actuality had less than 1,000 men but had advanced to Qingni (青泥, in modern Xi'an, Shaanxi), would attack his rear, tried to attack Shen Tianzi first, but was defeated by the heavily outnumbered Shen Tianzi, causing his army to collapse, and he was forced to return to Chang'an without having faced Liu Yu's main army.
Liu Yu's fleet, commanded by Wang Zhen'e (王鎮惡), then arrived at Chang'an, and the soldiers, after landing, attacked the Later Qin garrison at the city gates overlooking the Wei River.
His 10-year-old son Yao Fonian (姚佛念) opined that they would be executed anyway, and that it would be better to commit suicide.
Yao Hong, instead, along with his empress, surrendered to Wang, who arrested him and had him delivered to the Jin capital Jiankang.