Siwoo is a boy name with a rare feel, drawn from real birth records. Below you'll find how many babies have been named Siwoo across the United States, UK, Ireland and New Zealand, how popular Siwoo has been over the decades, and the year it peaked.
| Country | Births on record |
|---|---|
| United States since 1880 | 28 births |
Counts come from official national birth-registration statistics: U.S. Social Security Administration, England & Wales (Office for National Statistics), Scotland (National Records of Scotland), Northern Ireland (NISRA), Ireland (Central Statistics Office) and New Zealand (Dept. of Internal Affairs). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Siwoo per year, United States (2008 to 2025). United States peaked in 2025 (7/yr).
Siwoo is a rare baby name in the United States. It was most common in 2025, when it ranked #21,896 nationally (given to 7 babies that year).
Not sure if it's the one? The best way to know is to see if your partner loves it too. Swipe baby names with your partner and match on the ones you both ❤️, free, no account needed to start.
Find your name together →