Aung San Oo (Burmese: အောင်ဆန်းဦး, born in 1943) is a Burmeseengineer who is the elder brother of politician and Nobel Peace Prize winner Aung San Suu Kyi; the two are the only surviving children of Burmese independence leader Aung San. Aung San Oo was educated in England and immigrated to the United States in 1973. His wife, Lei Lei Nwe Thein (also spelled Leilei Nwe Thein), is also an American citizen.