Meltek Sato Kilman Livtuvanu is a Vanuatuan politician who served as the Prime Minister of Vanuatu on four previous occasions, most recently from 4 September to 6 October 2023. he was previously prime minister from December 2010 to April 2011, from May to June 2011 and June 2015 to February 2016, though his premiership was subsequently annulled by a court of law.