The Alerce is an Argentine railcar produced by the Emepa Group in Chascomús, Buenos Aires Province. As of 2015, the units are produced for the General Belgrano Railway's narrow gauge network and are currently used on commuter rail services, though a broad gauge variant is currently in the works. They are designed to be easily converted into Electric Multiple Units, though only diesel variants have been produced to date. The Alerce's namesake is the common name of Fitzroya cupressoides, a coniferous tree native to Argentina and Chile.

A railcar is a self-propelled railway vehicle designed to transport passengers. The term "railcar" is usually used in reference to a train consisting of a single coach, with a driver's cab at one or both ends. Some railway companies, such as the Great Western, termed such vehicles "railmotors".