Haʻapai 13 is an electoral constituency for the Legislative Assembly in the Kingdom of Tonga.
It was established for the November 2010 general election, when the multi-seat regional constituencies for People's Representatives were replaced by single-seat constituencies, electing one representative via the first past the post electoral system.
Located in the Haʻapai island group, it encompasses the villages of Nomuka, Mango, Fonoifua, Haʻafeva, Kotu, Tungua, Tofua, Fotuhaʻa, Matuku, ʻOʻua, Fakakai, Pukotala, Ha'ano, Muitoa, Moʻungaʻone, Fotua, Fangaleʻounga, Lotofoa, Faleloa, Haʻateihosiʻi, and Haʻafakahenga.
)[1] Its first ever representative was 'Uliti Uata, of the Democratic Party of the Friendly Islands.
He was elected with an overwhelming majority, appearing to make this, at present, a safe seat for the party.