|Full name||Nguyễn Ngọc Trường Sơn|
|Born|| 23 February 1990
Rach Soi, Rach Gia, Kien Giang Province, Vietnam
|Peak rating||2665 (November 2011)|
Nguyễn Ngọc Trường Sơn (born 23 February 1990 in Rach Soi, Rach Gia, Kien Giang Province) is a leading Vietnamese chess player. He is Vietnam's youngest Grandmaster ever, and one of the youngest grandmasters in the history of the game, having qualified for the title at the age of fourteen.
After learning chess at the age of 3, he won the gold medal at the world under-10 championship in 2000.
In 2006 Nguyễn won the Asian Junior (Under-20) Chess Championship in New Dehli, on tiebreak over Shiyam Sundar after they both finished on 7/9 points.
In August 2014, he, Lê Quang Liêm, and other Vietnamese chess players participated in 2014 Chess Olympiad in Tromsø, Norway. With +7=3-0 result, Nguyen Ngoc Truong Son won the gold medal on board two thanks to his rating performance of 2843.
In April 2015, he married compatriot International Master Phạm Lê Thảo Nguyên.