Caio is a boy name with a rare feel, drawn from real birth records.
| Country | Births on record |
|---|---|
| United States since 1880 | 722 births |
| England & Wales since 1996 | 562 births |
| Ireland since 1964 | 10 births |
Counts come from national birth registrations: the U.S. Social Security Administration, England & Wales (ONS) and Ireland (CSO). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Caio per year — England & Wales (1996–2025). England & Wales peaked in 2022 (43/yr) · United States peaked in 2023 (40/yr) · Ireland peaked in 2020 (6/yr).
Caio reached its peak in 2023, when it was the #6636 most popular baby name in the United States — making it a quintessential 2020s name.
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