Neiafu is the second-largest town in Tonga with a population of 3,731 in 2016. It is situated beside the Port of Refuge, a deep-water harbour on the south coast of Vavaʻu, the main island of the Vavaʻu archipelago in northern Tonga. To the north-west lies the 131-metre high Mt. Talau with its distinctive flat top.
Neiafu is the administrative centre of the Vavaʻu group and has government offices, banks, schools, a police station and a hospital. It is also an important centre for tourism with many yachts anchoring in the Port of Refuge.