The by-election was held Monday and polling officers reported a poor turnout with 7,629 of the 32,607 registered voters voting.
The Electoral Commission officially announced Edwin Kalorisu as the new Member of Parliament for Efate rural and offshore islands constituency with 1,768 votes.
The Reunification Movement of Change candidate Timothy Thomas, finished in second place with 1,411 votes and William Malas of New Nation Party came in 3rd with 1, 215votes.
The win means the Leaders party in the coalition government now has five MPs in the 52-seat House.
The Efate Rural seat was left vacant following the death of MP Jerry Kanas in June.
Photo supplied Caption: Leaders Party of Vanuatu candidate Edwin Kalorisu