New Leinster Province
Governor William Hobson named the North Island New Ulster, the South Island New Munster and Stewart Island/Rakiura New Leinster after the correspondence regions in Ireland in 1840. In 1840, a Royal Charter created the separate colony of New Zealand and the three main islands were officially named New Ulster, New Munster and New Leinster. Being much smaller than the other two provinces and having almost no population, it existed only on paper, and was governed (to the extent that it was governed at all) from Auckland. New Leinster was merged into the province of New Munster with the passage of the New Zealand Constitution Act in 1846  and all three provinces names were abolished in 1852.
- Malcolm McKinnon (November 2009). "Place names - Naming the country and the main islands". Te Ara - the Encyclopedia of New Zealand. Retrieved 5 February 2011.
- "Reference Guide Government Publications at the Hocken Collections". Hocken Library. Retrieved 5 February 2011.