.nu is the Internet country code top-level domain (ccTLD) assigned to the island state of Niue.
Niue (pronounced /ˈnjuːeɪ/ in English) is an island nation in the South Pacific Ocean. It is commonly known as the "Rock of Polynesia", and natives of the island call it "the Rock" for short. Niue is 2,400 kilometres northeast of New Zealand in a triangle between Tonga to the southwest, the Samoas to the northwest, and the Cook Islands to the southeast. The land area is 260 km2 with about 1400 people who are predominantly Polynesian.