Otahuhu railway workshops were a major rolling stock maintenance and repair facility of the New Zealand Government Railways Department, in the south Auckland suburb of Otahuhu in New Zealand's North Island. The workshops were opened in 1928, and were closed in 1992 as part of a rationalisation of workshop facilities throughout the country. Otahuhu Workshops were built following a report that highlighted the inadequacies of the Newmarket Workshops, the central Auckland facility that the Otahuhu Workshops replaced. Originally it was proposed that Otahuhu would carry out locomotive work and Hutt would be the Car and Wagon Workshop. This was reversed when it was found that the land on which Otahuhu was to be built was not suitable for the heavy machinery required for locomotive work.