Trịnh Thị Ngọ (born in 1931), also known as Hanoi Hannah, is a Vietnamese radio personality best known for her work during the Vietnam War, when she made English-language broadcasts for North Vietnam directed at US troops.
Ngọ was born in Hanoi in 1931 in a rich factory owner's family. She recalls that she grew eager to learn English because of her desire to watch her favorite films such as Gone with the Wind without subtitles. Her family provided her with private lessons in English. When she was 25 years old she began reading the English language newscast for Vietnam’s national radio station that was aimed at listeners in Asia’s English-speaking countries.
During the Vietnam War, she became famous among US soldiers for her propaganda broadcasts on Radio Hanoi. (There were actually several "Hanoi Hannahs", but she was the senior and most frequently heard one.) She made three broadcasts a day, reading a list of the newly killed or imprisoned Americans, attempting to persuade US GIs that the US involvement in the Vietnam War was unjust and immoral, and playing popular US anti-war songs in an attempt to incite feelings of nostalgia and homesickness. Though she used the alias Thu Huong, (Vietnamese: "the fragrance of autumn"), the GIs usually called her "Hanoi Hannah" or "the Dragon Lady". Few if any desertions are thought to have happened because of her propaganda work and the soldiers "hooted at her scare tactics". but they were sometimes impressed when she mentioned the correct location of their unit (when they would "give a toast to her and throw our beer cans at the radio") and named US casualties. There were exaggerated legends of her omniscience, with rumors that she would give clues about everything from specific future North Vietnamese attacks to soldiers' girlfriends cheating on them at home. In reality, most of her information came from publications such as the US military newspaper, Stars and Stripes.
Here is an excerpt from one of her broadcasts:
How are you, GI Joe? It seems to me that most of you are poorly informed about the going of the war, to say nothing about a correct explanation of your presence over here. Nothing is more confused than to be ordered into a war to die or to be maimed for life without the faintest idea of what's going on.
A January 1966 Newspaper Enterprise Association article by Tom Tiede described the program:
"Hannah's shows are invariably the same. After the news is an editorial denouncing U.S. escalation of the war. Then a recording by an Asian soprano who sounds as if she's having her ears pierced. Then, Mailbag Time ('write us for the truth, friends')." 
According to war correspondent Don North:
By zapping the truth through an ostrich-like policy censorship, deletions, and exaggerations U.S. Armed Forces Radio lost the trust of many GIs when they were most isolated and vulnerable to enemy propaganda. It wasn't that Hanoi Hannah always told the truth - she didn't. But she was most effective when she did tell the truth and U.S. Armed Forces Radio was fudging it.
After the war, she moved to Saigon with her husband. Ngo was better known in the US than in her own country. She was offered a job on HCMC Television, but she chose to stay at home and take care of her husband, who had suffered a stroke. She currently lives in Ho Chi Minh City with her family.
- Thanh Minh (2006-01-28). "Americans hear the 'Voice of Vietnam'". Voice of Vietnam (in Vietnamese). Retrieved 2007-06-24.
- Shock and awe, Hannah Hanoi style. at the Wayback Machine (archived August 22, 2008) Thanhnien News. Retrieved 22.9.2008
- The Search for Hanoi Hannah, by Don North
- Hanoi Hannah, 16 June 1967
- Tiede, Tom, Newspaper Enterprise Association, "'Hanoi Hannah' Talks To GIs", Playground Daily News, Fort Walton Beach, Florida, Thursday, 6 January 1966, Volume 19, Number 340, page 5.
- North, Don (1991). The Search for Hanoi Hannah. Sixties Project (Tucson, Arizona: Viet Nam Generation, Inc.). Retrieved January 28, 2002.