Siwoo
Si-woo, also spelled Shi-woo, is a Korean given name. It was among the top 5 most popular name for newborn boys in South Korea in 2011, 2013 and 2017.
Meaning & Origin of Siwoo
What this name means, where it came from, and how it has traveled across cultures.
Si-woo, also spelled Shi-woo, is a Korean given name. It was among the top 5 most popular name for newborn boys in South Korea in 2011, 2013 and 2017.
Source: Wikipedia (CC BY-SA 3.0). Read more →
The Story of Siwoo
Siwoo first appeared in U.S. Social Security Administration records as a baby boy name in 2008, with 5 babies given the name that year. Its peak popularity came in 2015, when 6 Siwoos were born — ranking #10,642 that year. As of 2026, Siwoo ranks #12,230 for baby boys with 5 births, with steady use. In total, more than 21 Siwoos have been born in the U.S. since records began in 1880, spanning the 2000s through the 2020s.
Popularity Over Time
Popularity by State
Notable people named Siwoo
A small selection from Wikipedia. Tap "Read more" below to see the full list on Wikipedia.
- Song Si-woo (born 1993), South Korean football midfielder
- Lee Si-woo (born 1994), South Korean volleyball player
- Kim Si-woo (born 1995), South Korean golfer
- Choi Si-woo (born 1996), South Korean sledge hockey player
- Kim Si-woo (born 1997), South Korean footballer
- Lee Si-woo (born 1997), South Korean actress and model
- Lee Si-woo (born 1999), South Korean actor
Source: Wikipedia (CC BY-SA 3.0). Read more →
Names that sound like Siwoo
Phonetically similar names — useful when Siwoo is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.
Source: Datamuse . Phonetic similarity ranking, not curated.
Frequently Asked Questions about Siwoo
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About the name Siwoo
Siwoo is a boy baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 2008 and has accumulated 21 births in the dataset. Siwoo's peak popularity came in 2015 when it ranked #10,642. Use the chart and map above to compare Siwoo's trajectory across years and U.S. states, or browse the related names section to discover similar choices.
Continue exploring
- Top names of 2015 →
- Names of the 2010s →
- Names starting with "S" →
- Browse all boy names →
- Top names of 2026 →
Data sources
- Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
- Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
- Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
- Predicted nationality distribution — Nationalize.io .
- Phonetically similar names — Datamuse .
Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.