Doosan Engineering & Construction (Korean: 두산건설) is a South Korean general construction company. Since its inception in 1960, the company has engaged in the construction of infrastructure facilities, including roads, railroads, bridges, ports, buildings and residential facilities.

In 2006, Doosan Engineering & Construction acquires Mitsui Babcock Energy, the United Kingdom based boiler design and engineering company, for $169.5 million US dollars.

In 2019, Doosan Engineering and Construction is announced to be delisted from the stock market after becoming an affiliate of Doosan Heavy Industries & Construction.

On June 15, 2020, Doosan Engineering and Construction looks to separate from the Doosan Group as it tries to find a buyer. Doosan E&C reported it is spinning off some assets and liabilities to Valuegrowth Corporation and will own 69.5% of Valuegrowth's common stock.

The Company handles design, implementation, maintenance and repair for all types of civil engineering, including expressways, subways, roads, bridges, industrial and residential complex construction, reclamation, and port construction.

The company has track records throughout diverse fields of the plant engineering business, including energy, industrial and environmental plants. It has constructed facilities such as low-temperature liquefied gas storage tanks and gas processing plants not only in Korea but also in many parts of the world, most recently the Madagascar ammonia terminal project.

Doosan We’ve, Doosan Engineering & Construction's residential apartment brand, was created in 2001.