The Kuroishi Line (黒石線, Kuroishi-sen) was a rail line of a Japanese minor private railway, Kōnan Railway in Aomori Prefecture, from Kawabe Station in Inakadate to Kuroishi Station in Kuroishi.

Originally the line was opened as Kuroishi Light railway (黒石軽便線, Kuroishi-keiben-sen) in 1912, merged to Kōnan Railway in 1984, and closed in 1998.

The phrase "Light railway" was removed from the name of the line in 1922.

In 1968, the Kōnan Railway offered to take over the operation of the line.

The line was listed in the 1st phase of Specified local lines due to low passengers, and it was transferred to Konan Railway on 1984.