The NZR RM class Standard railcars were a class of railcar operated by the New Zealand Railways Department (NZR) in the North Island of New Zealand. Officially classified as RM like all other railcar classes in New Zealand, they acquired the designation of "Standard" to differentiate them from other railcar classes. They were introduced in 1938 and withdrawn in 1972.

The Pahiatua Railcar Society (PRS) is a society located in Pahiatua, New Zealand, dedicated to the restoration of railcars and other locomotives and rolling stock formerly operated by the New Zealand Railways Department. It is notable for possessing the sole remaining examples of the RM class 88 seater and Wairarapa railcars.