Belmont Regional Park is a Wellington Regional park located between Lower Hutt and Porirua, New Zealand. It is the largest of the Wellington Regional parks, stretching close to 15 kilometres (9.3 mi) from Wellington Harbour to Haywards and 10 kilometres (6.2 mi) to Porirua, containing farm land, native bush, and peaks up to 456 metres (1,496 ft) (Belmont Trig).
There are several entrances from the Hutt Valley side and two on the Porirua side. Some tracks permit mountain biking and horse riding.
The park features numerous tracks, including the 6-7 hour 'Puke Ariki' traverse, which is a favourite for hikers and mountainbikers alike.