In Nauru, rail transport is used for moving calcium pyrophosphate from the island's interior to the cantilever jetties on the island's western coast. For this purpose, a 3.9 km (2.4 mi) long, 610 mm (2 ft) gauge was built by the Pacific Phosphate Company in 1907. The line passes through the districts of Aiwo, Buada, Denigomodu, Nibok, Uaboe and Anibare.

The railway at Aiwo jetty was electrified in 1912, but replaced by a conveyor belt between the storage bins and the jetty head.^[1]

The gauge was upgraded to 914 mm (3 ft) by the British Phosphate Commission in 1920. In the past, steam engines were used to power the trains, but the railway is nowadays worked by diesel engines, though occasionally, a tractor is used.^{[citation needed]}

With Nauru's phosphate deposits almost depleted, the future of the railway is uncertain. The trains were still running as of 2008, although operations are believed to have ceased after 2011.^[2][3]

Nauru's phosphate train features on several Nauru stamps, including a series from 1980 (Yvert no. 211-213) and another one from 1985 (Yvert no. 306, Scott no. 308).

The trains of Nauru have been depicted on commemorative Nauruan postage stamps.^{[citation needed]}

• Transport in Nauru
• Nauru Phosphate Corporation

• David Jehan: Tramways, Coconuts and Phosphate: A History of the Tramways of Ocean Island and Nauru. Light Railway Research Society of Australia Inc.