| New Ulster Province | |
| Settlement Type: | Provinces of New Zealand |
| Total Type: | Region |
| Subdivision Type: | Country |
| Subdivision Name: | New Zealand |
| Subdivision Type1: | Island |
| Subdivision Name1: | North Island |
| Established Title: | Established |
| Established Date: | 1846[1] |
| Extinct Title: | Abolished |
| Extinct Date: | 1853 |
| Named For: | Ulster |
New Ulster was a province of the Colony of New Zealand that existed between 1841 and 1853. It was named after the Irish province of Ulster.
Between 1841 and 1846, the province included all the North Island. With the passing of the New Zealand Constitution Act 1846, the province was defined as the North Island north of the Patea River mouth. Like the other province of New Zealand at the time, New Munster Province, New Ulster Province was headed by a Lieutenant-Governor who reported to the Governor of New Zealand.
In 1852, a new Constitution Act was passed, and the New Ulster province was abolished and divided into Auckland Province, part of the Wellington Province and New Plymouth province (later Taranaki Province).