Đông Nam Bộ is a region in Vietnam. This region includes one municipality, Ho Chi Minh City; and five provinces: Đồng Nai, Bình Dương, Bà Rịa–Vũng Tàu province, Bình Phước and Tây Ninh. The two south central provinces Ninh Thuận and Bình Thuận are sometimes seen as part of the Southeast region. This region is the most economically developed region in Vietnam. In 2006, this region contributed 148,000 billion VND out of 251,000 billion VND to the state budget. This region is also the most highly urbanized in the country with more than 50% people living in urban areas.

Bà Rịa is a city in Bà Rịa–Vũng Tàu province in the Southeast region of Vietnam. Bà Rịa is split from Vũng Tàu by a river crossed by Cỏ May Bridge. This is the de jure seat of the province since most of the provincial administration agencies are located here. Bà Rịa officially became the provincial capital of Bà Rịa–Vũng Tàu from 2 May 2012, replacing Vũng Tàu in that role.