The Ch'ŏngjinhang Line, or Ch'ŏngjin Port Line, is an electrified freight-only railway line of the Korean State Railway in North Korea, connecting Ch'ŏngjin Ch'ŏngnyŏn Station at the southern junction of the P'yŏngra and Hambuk lines with Ch'ŏngjin Port.

[1] Originally called Ch'ŏngjinbudu Line or Ch'ŏngjin Wharf Line, it was originally opened on 1 July 1940 by the Chosen Government Railway, running 2.0 km (1.2 mi) from the former site of Ch'ŏngjin Station to Ch'ŏngjinbudu Station.

[2] The length of the line to the port was increased to 2.8 km (1.7 mi) on 1 February 1942, when the original station at Ch'ŏngjin was closed and a new station, today's Ch'ŏngjin Ch'ŏngnyŏn Station, was opened.

[3] A yellow background in the "Distance" box indicates that section of the line is not electrified.