|Prime Minister of Laos|
15 June 2011 – 20 April 2016
|Succeeded by||Thongloun Sisoulith|
23 December 2010 – 15 June 2011
|Preceded by||Bouasone Bouphavanh|
|President of the National Assembly of Laos|
8 June 2006 – 23 December 2010
|Preceded by||Samane Vignaket|
|Succeeded by||Pany Yathotou|
|Head of the LPRP Central Committee Organisation Commission|
|Succeeded by||Bounthong Chitmany|
|Preceded by||Oudom Khattigna|
|Born||12 April 1944|
|Political party||People's Revolutionary Party|
Thongsing Thammavong (Lao: ທອງສິງ ທຳມະວົງ; born 12 April 1944) is a Laotian politician who was the Prime Minister of Laos from 2010 to 2016. He is a member of the Lao People's Revolutionary Party (LPRP) and has been a member of the LPRP Politburo since 1991. He currently serves in the National Assembly of Laos, representing Luang Prabang Province (Constituency 6), and was the President of the National Assembly from 2006 to 2010. He became Prime Minister on 23 December 2010, and left office on 20 April 2016.
- "List of members by province:Constituency 6, Luangprabang Province". The National Assembly of the Lao People's Democratic Republic. May 16, 2007. Archived from the original on August 30, 2008. Retrieved December 11, 2008.