Wairarapa FM was a radio station in Wairarapa, New Zealand broadcasting from studios in Masterton.
The station was started by Radio New Zealand (which at the time was known as the National Broadcasting Service) in 1958 on 840AM with the callsign 2XB. The station was originally branded as it's callsign 2XB. In 1968 2XB changed became known as 2ZD when the station changed callsigns. In 1978 the station moved to 846AM when AM frequency spacing in New Zealand was adjusted from 10 kHz to 9 kHz. During the 1980s the station became known on air as Radio Wairarapa.
In July 1996 the New Zealand Government sold off the commercial arm of Radio New Zealand, the sale included Radio Wairarapa. The new owner was The Radio Network, a subsidiary of APN News & Media and Clear Channel Communications, which operated as a division of the Australian Radio Network.
In 1998 The Radio Network grouped all their local stations in smaller markets together to form the Community Radio Network. The station continued to run a local breakfast show between 6am and 10am but outside breakfast all stations part of the Community Radio Network took network programming from a central studio based in Taupo. Coinciding with the change Radio Wairarapa began broadcasting on 90.1FM and renamed to 90.1 Wairarapa FM.