Peter Sobby Tsiamalili (1952 or 1953 – 15 April 2007) was the Papua New Guinean civil servant who served as the first chief administrator of the Autonomous Region of Bougainville (ABG) following successful elections in June 2005.
Following the completion of his education and training, Tsiamalili worked his way up the bureaucratic ladder to become the provincial secretary of the North Solomons Province, which is now known as the Autonomous Region of Bougainville.
[2] The government of former Prime Minister Bill Skate next appointed Tsiamalili to be secretary of Department of Personnel Management (DPM) during the late 1990s.
[5] The PNG government cabinet under Michael Somare appointed Tsiamalili as the first administrator of the Autonomous Region of Bougainville following the elections.
[2] Tsiamalili remained the top bureaucrat within the PNG government, while simultaneously playing an important behind-the-scenes role in the Bougainville peace process.
[2] Peter Tsiamalili died unexpectedly in his sleep on 15 April 2007, in his home village of Torokina, Amun, in southwestern Bougainville at the age of 54.
There was political fallout from Tsiamalili's burial when several Bougainvillean civil servants and government officials attended the ceremony while intoxicated, including then Vice-president Joseph Watawi and the acting chief administrator Patrick Koles.
[9] On 4 May 2007, five thousand people held a protest in Buka calling for the ouster of Vice-president Watawi and acting administrator Patrick Koles for breaking social taboos by drinking at the burial.