Caio
3 countries#3314 in United States, 2025Popularity across 3 countries
Each line is scaled to its own peak, so you can compare when Caio was in fashion in each country, whatever the population size.
Country by country
🇺🇸 United States
722 births recorded 1990–2025 · currently #3314 · peaked in 2023 with 40 births
Most common in: Massachusetts, California, Florida
Source: Social Security Administration, official birth-registration data
🏴🏴 England & Wales
451 births recorded 1996–2021 · currently #1023 · peaked in 2014 with 32 births
Source: Office for National Statistics, official birth-registration data
🇬🇧 United Kingdom
451 births recorded 1996–2021 · peaked in 2014 with 32 births (England & Wales + Scotland + Northern Ireland combined)
Source: ONS, National Records of Scotland & NISRA (combined), official birth-registration data
🇫🇷 France
7 births recorded 2020–2021 · peaked in 2021 with 4 births
Source: INSEE, official birth-registration data
United States rank history
Caio’s rank among boys’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #3602 | — |
| 2007 | #3379 | ↑223 |
| 2008 | #3486 | ↓107 |
| 2009 | #3476 | ↑10 |
| 2010 | #3531 | ↓55 |
| 2011 | #4509 | ↓978 |
| 2012 | #4003 | ↑506 |
| 2013 | #3582 | ↑421 |
| 2014 | #4538 | ↓956 |
| 2015 | #4295 | ↑243 |
| 2016 | #7157 | ↓2862 |
| 2017 | #4224 | ↑2933 |
| 2018 | #3446 | ↑778 |
| 2019 | #3347 | ↑99 |
| 2020 | #4141 | ↓794 |
| 2021 | #3497 | ↑644 |
| 2022 | #3774 | ↓277 |
| 2023 | #3055 | ↑719 |
| 2024 | #3693 | ↓638 |
| 2025 | #3314 | ↑379 |
Frequently asked questions about Caio
Is Caio a popular name?
Yes — Caio currently ranks #3314 among boys’ names in United States as of 2025, based on official birth records.
Is Caio more common for boys or girls?
Caio is recorded predominantly as a boys’ name in official United States birth data.
When was Caio most popular?
Caio peaked in 2023 in United States, with 40 recorded births that year.
Is Caio rising or falling in popularity?
In United States, Caio’s popularity is rising — its rank has improved from #7178 in 1990 to #3314 in 2025.
How many babies have been named Caio?
At least 1,180 babies have been recorded with the name Caio across official birth statistics in 3 countries.
Is Caio popular in more than one country?
Yes — Caio appears in official birth records in 3 countries: United States, England & Wales, France.
What names are similar in popularity to Caio?
Based on real 2025 ranking data in United States, names ranked closest to Caio include Branden, Brant, Calen, Cedrick.
Similar names right now
Ranked directly next to Caio in United States, 2025 — a real popularity match, not a subjective list.