Yoonseo
A girl's name of Korean origin with 5 recorded U.S. births.
Meaning & Origin
Yoonseo reads as a modern invention — a name that emerged in the 2000s and was likely coined by parents looking for something fresh rather than inherited.
The open, approachable quality of its ending — ending on a vowel softens the overall impression — keeps the name compact and easy to pair with longer middle names or surnames.
Yoonseo is not in the current top 1,000 girl names nationally, making it an uncommon choice — though your state or community may differ.
Yoonseo is a girl's baby name of Korean origin, combining the Korean elements yoon (meaning 'allow, permit' or 'abundant') and seo (meaning 'auspicious' or 'written word, letter'). Together, the name carries connotations of abundance and good fortune.
Rare in American records outside Korean-American communities, Yoonseo is a quietly elegant Korean name — two syllables that together speak of prosperity and written grace.
EtymologyShow more
Yoonseo appeared in SSA records in 2007, placing it in the modern era of American naming — a period when parents increasingly draw from global cultures, invent new names, and blend sounds to create something entirely original. Its Korean roots may have been the starting point, adapted or respelled to fit contemporary American tastes.
With only 5 recorded births, Yoonseo has not been widely studied in naming literature — its story belongs primarily to the families who chose it.
At a Glance
Popularity Over Time
Yoonseo has 1+ years of history in the U.S., first appearing in 2007.
Popularity by Decade
| Decade | Births | Trend |
|---|---|---|
| 2000s | 5 | — |
The Story of Yoonseo
A Gen Z name
Peaking in 2007, Yoonseo is a name that defines a generation. Girls named Yoonseo are most likely born between 2007 and 2007.
How rare is Yoonseo?
With fewer than 500 recorded births, Yoonseo is an exceptionally rare name — a one-of-a-kind choice.
The journey through the decades
First appeared in the records in 2007, peaked in the 2000s with 5 births that decade.
Year-by-Year Data
View complete yearly data(1 years, 2007–2007)
| Year | Births | Rank |
|---|---|---|
| 2007 | 5 | #20498 |
Source: U.S. Social Security Administration. Showing years with 5+ recorded births.
Frequently Asked Questions
Is Yoonseo a boy's or girl's name?
When was Yoonseo most popular?
How popular is the name Yoonseo?
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Data source: U.S. Social Security Administration, 2007–2007