The Marlborough Province operated as a province of New Zealand from 1 November 1859, when it split away from Nelson Province, until the abolition of provincial government in 1876.

Nelson Province was constituted in 1853 under the New Zealand Constitution Act 1852, and originally covered the entire upper South Island, including all of present-day Buller, Kaikoura, Marlborough, and Tasman districts, along with Nelson City, Grey District north of the Grey River, and the Hurunui District north of the Hurunui River. It was reduced in size by the creation of Marlborough Province in November 1859, then abolished in 1876, along with all the provinces of New Zealand.