"Rajin" redirects here. For the village in Iran, see Rajin, Iran
Rajin-guyŏk; Korean pronunciation: [ɾadʑin, ɾadʑin-guyɔk]) is a North Korean district on Rason in the Sea of Japan in the North Pacific Ocean on the northeast tip of North Korea. It is in the Kwanbuk region and location in the south of Rason. North of it lies the North Korea–Russia border.
Rajin Station is on the Pyongra Line, Hambuk Line.
The railway Khasan–Rajin, originally built in 1954, connects the port of Rajin with the Russian Khasan on the Tumen River; the river is the natural North Korea–Russia border. The railway had been renewed between 2008-2013. As the track was built using four rails both Russian broad gauge as well as Korean standard gauge trains can access the port of Rajin. 
Coordinates: 42°20′24″N 130°23′23″E / 42.34000°N 130.38972°E