Sonatane Tu'akinamolahi Taumopeau Tupou, Lord Taumoepeau-Tupou of Toula and Kotu (born 14 March 1943, in Nuku?alofa, died 13 August 2013) was a diplomat from the Kingdom of Tonga.
Lord Taumoepeau-Tupou had been the Foreign Minister of Tonga since 24 August 2004, though his appointment was not announced until 2 September 2004.
He had also been Minister of Defense since April 2005 till his death.Taumoepeau-Tupou was Tonga's third Foreign Minister, after King George Tupou V (at that time: Tupouto?a Lavaka), and most recently Prince ?Aho?eitu ?Unuaki?otonga Tuku?aho (at that time: Lavaka Ata ?Ulukalala).
Taumoepeau-Tupou was a career diplomat.
He had previously been Tonga's first ambassador to the United Nations after Tonga joined the United Nations in September 1999.
During his tenure at the United Nations he was also accredited as Tonga's Ambassador to the United States and High Commissioner to Canada.
On 1 May 2009, he relinquished his position as a Cabinet Minister, to take up more diplomatic positions.