The Temiya Line (手宮線, Temiya-sen) was a local freight narrow gauge railroad in Otaru, Hokkaidō, Japan, connecting Minami-Otaru Station and Temiya Station.

The line was a state-owned enterprise, originally established in the late 19th century to transport coal and marine products, and closed in 1985.

Like many other Meiji period railroad enterprises, the line uses 3 ft 6 in (1,067 mm) gauge track over its 2.8 km route, in order to lower the cost of the original project.

Though it was originally intended to extend from the seashore to the colliery at Temari-mura Kayanuma, this was deemed inefficient, as ships could do the same work.

The local Otaru Memorial Museum is caretaker of the remains.