Haikou Xin Port, Maritime port in Haikou, China

Haikou Xin Port is a port at the mouth of the Nandu River in Haikou, the capital of China's Hainan Island. It has several berths and handles both freight and passenger traffic.

The site was first used as a seaport during the Song dynasty. In 1953 the port gained cement foundations, and in 1973 the Guangdong provincial government invested nearly 200 million RMB to deepen the silted water and add storage, a yard and a waiting room, raising capacity to 40 million tons a year. The site was renovated in the 2010s and the port removed.

The wholesale fish market stood at the eastern end of the port, supplying seafood to markets and restaurants across Haikou. Large sea fish, squid, shellfish and smaller fish were sold there, and neighbouring buildings stored and processed the catch and made ice blocks chipped and sold to dealers. The main fish market has since moved to the middle of Xinbu Island.

The port was removed after renovation of the site in the 2010s, so there is no waterfront to visit today. The wholesale fish market that operated at its eastern end has moved to the middle of Xinbu Island, east of the former port.

The port sits right where the Nandu River meets the sea, meaning ships must navigate both river currents and tidal flows at the same time. This makes docking here more demanding than at a standard open-sea port.