Đồng Nai is a province in the Southeast region of Vietnam, located east and northeast of Ho Chi Minh City (Saigon).

Its location is very important for the development of the Southern economic main hub and a junction of the South Eastern and Tây Nguyên Highland.

Đồng Nai is based essentially on the system of lakes, dams and rivers, of which Trị An Lake with an area of 323 km² and over 60 rivers, rivulets and canals are very favorable for the development of a number of aquatic products: raft bred fish and shrimp.

Đồng Nai's weather with regular sunshine, rain, and high humidity, equally found in the localities, facilitates agricultural production and development of industrial, cultural and tourist activities.

Đồng Nai is plentiful with resources such as forests, granite mines, construction stone, clay, kaolin, pozzolan, sand and gravel.

[2] Its population has been growing rapidly in recent years, mainly driven by migrant workers coming to the province to work in factories.

[5] Đồng Nai is second only to Bình Dương province in both population growth and net migration.

The population of Đồng Nai is primarily the dominant Kinh (Viet) ethnicity, although there are residents of the Chinese, Stieng, Mạ, Nùng, Tay, and Cham minorities.

[9] Despite its strong focus on industrial development, Đồng Nai still has a substantial agricultural sector.

[5] Đồng Nai also produced 619,700t of sugar cane (3.5% of the national output), sweet potatoes and cassava.

[5] Đồng Nai is the largest livestock producer among Vietnam's provinces and there are plans to further invest in the sector.

It has attracted 9.1% of FDI[clarification needed] into Vietnam by 2011, an accumulated US$18.2 billion, the fourth largest after Ho Chi Minh City, Bà Rịa–Vũng Tàu province and Hanoi.

As a result of the Vietnam War, some areas around Bien Hoa Air Base were dioxin pollution.