Mokopuna Island is a small island in Wellington Harbour, New Zealand. It is about 200 metres (219 yd) on its long axis and about 80 metres (87 yd) across. It lies immediately north of the much larger Matiu/Somes Island, from which it is separated by a channel about 50 metres (55 yd) wide.
A number of wave-cut arches and caves line the shore. For about 3 months in 1904 one of these caves was the home of one Kim Lee, a Cantonese fruiterer who had been diagnosed (possibly mistakenly) as a leper. Even though Matiu/Somes was the human quarantine station at the time, Lee was exiled to Mokopuna, where he was supplied with food and water by a flying fox from Matiu/Somes.