The Dongyi or Eastern Yi is a collective term, referring to ancient peoples who live in eastern China during the prehistory of ancient China and in lands located to the east of ancient China.

People referred to as Dongyi vary across the ages.

They are one of the four traditional groups of barbarians in Chinese culture, along with the Northern Di, the Southern Man, and the Western Rong; as such, the name "Yi" is something of a catchall and is applied to different groups over time.According to the earliest Chinese record, the Zuo Zhuan, the Shang Dynasty was attacked by King Wu of Zhou while attacking the Dongyi and collapsed afterwards.