Chenghai or Tenghai is a of the of Shantou, Guangdong , People's Republic of China.
It is the birthplace of Qin Mu, and Hai-Hong, the father of Taksin who was a Thai king.
It locates in the Southeast part of Guangdong province. Before 1994, Chenghai was a town belonging to Shantou city. After 1994, Chenghai was established as a town-level city and was administrated by provincial government directly. While in 2005, Chenghai was recruited as a district by Shantou city when it had already become a world-class known toy manufacturing zone. The main coperative strategies were OEM and subcontract production.