Pitt Island is the second largest island in the Chatham Archipelago, New Zealand. It is called Rangiauria in Māori and Rangiaotea in Moriori.

Pitt Island has an area of 65 square kilometres (25 sq mi). It lies about 770 kilometres (480 mi) to the east of New Zealand's main islands, and about 20 kilometres (12 mi) to the southeast of Chatham Island, from which it is separated by Pitt Strait. The island is hilly; its highest point (Waihere Head) rises to 241 metres (791 ft) above sea level. As of 2011, Pitt Island had a population of about 38 people.

Pitt Island's Kahuitara Point is the first populated location on Earth to observe a sunrise in each new year, based on local time zone.