She only appears under the banyan tree, and only when the moon is full. Students at one of Saigon's oldest high schools say a girl in a violet áo dài — the exact uniform color the school phased out seventy years ago — still walks the courtyard after dark. The purple áo dài ghost is a schoolyard legend tied to Nguyễn Thị Minh Khai High School (formerly Gia Long, formerly Collège des Jeunes Filles Indigènes), a real, 113-year-old institution in Ho Chi Minh City. The building's colonial history is documented. The ghost is not.
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<h4>In the record</h4>
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<li>The school was founded in 1913 as Collège de Jeunes Filles Indigènes, Saigon's first school for Vietnamese girls, opening with 42 students.</li>
<li>Purple (tím) áo dài was the mandatory uniform color from founding until the 1950s, when the school (renamed Gia Long) switched to white.</li>
<li>The campus was officially recognized as a city-level architectural and artistic heritage site in 2012, and after 1975 it was renamed Nguyễn Thị Minh Khai High School.</li>
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<h4>Not in the record</h4>
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<li>No named student, no death record, and no date attaches to the girl in the purple áo dài — every telling calls her only “a student from a very long time ago.”</li>
<li>The claim that she died by suicide in the clock tower over exam pressure has no corroborating source outside student word-of-mouth.</li>
<li>Reports of doppelgänger sightings — students supposedly seen in two hallways at once — are anecdotal and undated.</li>
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The School Behind the Story
Long before it became a ghost story, Nguyễn Thị Minh Khai High School was a milestone in Vietnamese education. French colonial administrators opened it in 1913 as the Collège de Jeunes Filles Indigènes — literally, the “college for native girls” — the first institution in Saigon built specifically to educate Vietnamese girls rather than French colonists' daughters. It admitted 42 students at launch, taught almost entirely in French, and dressed its students in purple áo dài, a color choice deliberate enough that locals nicknamed it “trường nữ sinh áo tím,” the school of the purple-uniformed girls.
The name changed twice more. In 1950 it became Gia Long Girls' High School, and the uniform color changed too, from purple to white. After the Fall of Saigon in 1975, the school was renamed a final time for Nguyễn Thị Minh Khai, a Vietnamese communist revolutionary executed in 1941, and it became coeducational a few years later. Through all three names, the physical campus stayed largely intact: Block A, Block B, connecting passages, a clock tower, and a courtyard shaded by an old banyan tree. In 2012, the compound was formally designated a city-level architectural and artistic relic.
That is the documented part — a 113-year institutional history that any Ho Chi Minh City heritage record can confirm. What comes next is not that kind of history.
The Legend of the Purple Áo Dài Girl
According to generations of students, a phantom in a purple áo dài appears under the campus banyan tree, particularly on nights when the moon is full and a handful of students stay late enough to see the courtyard empty out. The story usually attaches her to the clock tower: a student, unnamed and undated in every version, is said to have taken her own life there under the weight of exam pressure, sometime before the uniform color itself was retired in the 1950s. Her purple dress — a color no living student has worn to this school in over seventy years — is treated as the detail that confirms she belongs to an older era, even though nobody can say which one.
The legend doesn't stop at one apparition. Students also describe hearing sounds from classrooms and restrooms that should be empty after hours, and a stranger claim: doppelgänger sightings, where a student is reportedly seen in two places on campus at the same time. Certain staircases and the passage connecting Block A to Block B carry their own reputation, with some students saying they've experienced disorientation or hallucination-like moments crossing them at particular hours. None of this is written down anywhere official — it survives the way most school ghost stories survive, passed from senior students to incoming freshmen every September, each telling filing off a few more details and adding a few new ones.
What makes the purple áo dài story durable isn't evidence — there isn't any — but the alignment between a real historical detail (the uniform color genuinely did belong to an earlier decade of the school) and a supernatural claim built to fit it. That's a pattern familiar from other Asian school ghost stories: a documented institutional fact becomes the scaffolding a legend hangs itself on.
Why the Story Persists
Nguyễn Thị Minh Khai isn't an obscure school — it's one of the most recognized girls' schools in Vietnamese history, referenced in literature and film, including the 2007 movie “Mười: The Legend of a Portrait.” Its prestige and age are exactly why the ghost story sticks. A newer school with no history behind it has nothing for a legend to attach to. A century-old campus that changed uniforms, changed names, and sits on colonial-era architecture gives every retelling something concrete to point at, even when the point itself — the girl, the clock tower, the exact year — stays permanently out of reach.
Vietnam has other school-adjacent hauntings that follow the same shape, and neighboring Hong Kong has its own dormitory ghost legend built around a similarly unverifiable death — see our coverage of the pigtail girl of CUHK. For a different kind of Vietnamese ghost story tied to a real, dated incident rather than schoolyard oral tradition, see our piece on the 2009 Big C Hải Phòng ghost sighting.
Frequently Asked Questions
Is the purple áo dài ghost story true?
There's no way to verify it. The school's history — its 1913 founding, its purple uniforms, its later name changes — is well documented. The ghost, the clock tower death, and the exam-pressure motive appear only in student oral tradition with no named person, date, or outside corroboration.
Why is the ghost specifically wearing a purple áo dài?
Because purple genuinely was the school's uniform color from 1913 until the 1950s, when it switched to white under the Gia Long name. The color is a real historical detail; the ghost wearing it is the legend's way of anchoring an unverifiable story to something everyone can confirm.
What is Nguyễn Thị Minh Khai High School actually known for?
It's one of Vietnam's oldest schools, founded in 1913 as the first institution built to educate Vietnamese girls in French Indochina. It was later renamed Gia Long, then Nguyễn Thị Minh Khai after 1975, and its campus was named a city-level heritage site in 2012.
Are there other ghost stories connected to the school?
Yes. Alongside the purple áo dài girl, students describe doppelgänger sightings and disorientation near specific staircases and the passage connecting the school's two main buildings. None of these have documentation beyond student anecdote.
Does the story ever name the student who died?
No. Every version of the legend describes her only as “a student from a very long time ago.” No name, exact year, or death record has ever surfaced attached to the story.
Is this the same as the Gia Long school ghost stories?
Yes — Gia Long and Nguyễn Thị Minh Khai are the same physical school under two of its three historical names. The purple áo dài legend predates the 1975 renaming, since the uniform color it references was retired in the 1950s.
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