The New Zealand National Science Fiction Convention is a volunteer-run science fiction convention that is scheduled annually, and usually takes place either at Easter or at Queen's Birthday weekend (end of May/early June). It is usually abbreviated as NatCon.
New Zealand's premier science fiction award, the Sir Julius Vogel Award, is presented each year at the national convention.
Unlike the case with many other countries' national conventions, each convention is run by a different committee, unaffiliated with any national fannish body. Bids for running the NatCons are voted on by attendees at the NatCon two years ahead. These votes are organised by the current NatCon committee in liaison with the Science Fiction and Fantasy Association of New Zealand.
In the early years of the national convention, the four main cities (Auckland, Wellington, Christchurch, and Dunedin) all held the NatCon, but in recent years, the conventions have mostly been held in one of the two largest cities, Wellington and Auckland, both in the North Island. In 2020 the 41st NatCon was incorporated into ConNZealand 78th World Science Fiction Convention in Wellington.