Loung Ung (Khmer: អ៊ឹង លឿង Aung Lueng; born April 17, 1970) is a Cambodian-born American human-rights activist and lecturer. She is the national spokesperson for the Campaign for a Landmine-Free World. Between 1997 and 2003, she served in the same capacity for the "International Campaign to Ban Landmines", which is affiliated with the Vietnam Veterans of America Foundation.
Ung was born in Phnom Penh, Cambodia, the sixth of seven children and the third of four girls, to Seng Im Ung and Ay Choung Ung. Her actual birthdate is unknown: the Khmer Rouge destroyed many of the birth records of the inhabitants of cities in Cambodia. At ten years of age, she escaped from Cambodia as a survivor of what became known as "the Killing Fields" during the reign of Pol Pot's Khmer Rouge regime. After emigrating to the United States and adjusting to her new country, she wrote two books which related her life experiences from 1975 through 2003.
Today, Ung is married and lives with her husband in Shaker Heights, a suburb of Cleveland, Ohio, USA.