Laem Chabang is a subdistrict municipality in Chonburi Province, Thailand. It covers the tambon Bang Lamung of Bang Lamung district, and the complete tambon Bueng, Sura Sak, Thung Su Khla and parts of Nong Kham of Si Racha district.

It is home to Thailand's largest port by the same name, about 25 kilometres north of Pattaya, and south of the city Chon Buri. Starting in 1988, a major development to encourage development outside Bangkok and take advantage of proximity to the Gulf of Thailand, was the Laem Chabang container port that was completed in 1991. As of 2005 it is the 20th busiest port in the world. Much of the international shipping reaching Thailand goes through Laem Chabang and it is a stopping point for Princess Cruises.