Newmarket railway station is a station in the inner-city suburb of Newmarket in Auckland, New Zealand. It serves the Southern, Onehunga and Western Lines of the Auckland railway network, and is the second-busiest station in Auckland, after Britomart.

Newmarket is an Auckland suburb to the south-east of the central business district. With its high building density, especially of retail shops, it is considered New Zealand's premier retailing area, and a rival of local competitor Auckland CBD.