The Kahului Railroad (KRR) was formerly a common carrier railway company in Hawaii (United States).

It operated on 3 ft (914 mm) narrow gauge track 15 miles (24 km) in length from Wailuku to Kuiaha on the north coast of the island of Maui.

From 1894 until the annexation of the Hawaiian Islands by the United States in 1899, Kahului Railroad Company used its own stamps for the transport of mail that was produced by the US Postal Service.

[2] In 1899, the railroad was acquired by the Hawaiian Commercial & Sugar Co.[3] In 1906, the railway company built from the port of Kahului.

The tracks and some vehicles were used for the construction of Lahaina, Kaanapali and Pacific Railroad, a tourist train in the west of the island.