Dĩ An is a city located in the Bình Dương Province within the Southeast region of Vietnam. It is situated approximately 20 km north of central Ho Chi Minh City and is positioned 1,706 km from Hanoi by rail.
The city covers an area of 60 km² (23 sq mi). According to the 2009 census, Dĩ An had a population of 73,859 residents.