Pauline Hanson's One Nation

Pauline Hanson's One Nation (PHON), also known as One Nation (ON) or One Nation Party (ONP), is a right-wing populist political party in Australia. It is led by Pauline Hanson.

One Nation was founded in 1997 by Hanson and her advisors David Ettridge and David Oldfield after Hanson was disendorsed as a federal candidate for the Liberal Party of Australia. The disendorsement came before the 1996 federal election following comments she made about Indigenous Australians. Oldfield, a councillor on Manly Council in suburban Sydney and at one time an employee of Liberal minister Tony Abbott, was the organisational architect of the party. Hanson sat as an independent for one year before forming Pauline Hanson's One Nation.

One Nation had electoral success in the late 1990s, before suffering an extended decline after 2001. Nevertheless, One Nation has had a profound impact on debates on multiculturalism and immigration in Australia. Following Hanson's return as leader and the 2016 federal election, the party gained four seats in the Senate, including one for Hanson herself, in Queensland. Since 2022, the party has two seats in the senate.

The party's platform is conservative, denies the existence of climate change, and denounces economic rationalism and globalisation. One Nation's policies and platform have been characterised as racist and xenophobic by critics.