Kosà Âng station is a railway station in Kosà Âng-à Âp, Kosà Âng county, Kangwà Ân province, North Korea on the Kà Âmgangsan Ch'à Ângnyà Ân Line of the Korean State Railway.
The station, originally called Changjà Ân station, was opened on 1 August 1932 by the Chosen Government Railway, along with the rest of the fourth section of the original Tonghae Pukpu Line from Tup'o to here.