Dong'an District () is a district of the city of Mudanjiang, Heilongjiang province, People's Republic of China.

Administrative divisions
There are five subdistricts and one town in the district: 

Qixing Subdistrict (), Xin'an Subdistrict (), Chang'an Subdistrict (), Wuxing Subdistrict (), Dongxing Subdistrict (), Xinglong Town ()

Notes and references 

Dong'an
Mudanjiang