당이산(唐羡山)에 조성된 공원이어서 당이산공원이라 한 것이며, 청주의 동쪽에 조성된 공원이어서 동공원이라 한 것이다.
It was called Dangisan Park because it was built on Dangisan Mountain, and it was called Dong Park because it was built in the east of Cheongju.