Caius
5 countries#927 in United States, 2025Popularity across 5 countries
Each line is scaled to its own peak, so you can compare when Caius was in fashion in each country, whatever the population size.
Country by country
🇺🇸 United States
2,329 births recorded 1994–2025 · currently #927 · peaked in 2025 with 254 births
Most common in: California, Texas, Ohio, Pennsylvania, Florida
Source: Social Security Administration, official birth-registration data
🇬🇧 United Kingdom
394 births recorded 1996–2025 · currently #844 · peaked in 2020 with 31 births (England & Wales + Scotland + Northern Ireland combined)
Source: ONS, National Records of Scotland & NISRA (combined), official birth-registration data
🏴🏴 England & Wales
382 births recorded 1996–2021 · currently #1595 · peaked in 2014 with 30 births
Source: Office for National Statistics, official birth-registration data
🏴 Scotland
9 births recorded 2011–2020 · peaked in 2011 with 6 births
Source: National Records of Scotland, official birth-registration data
Northern Ireland
3 births recorded 2025–2025 · currently #395 · peaked in 2025 with 3 births
Source: NISRA, official birth-registration data
🇫🇷 France
3 births recorded 1925–1925 · peaked in 1925 with 3 births
Source: INSEE, official birth-registration data
United States rank history
Caius’s rank among boys’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #5525 | — |
| 2007 | #3591 | ↑1934 |
| 2008 | #3823 | ↓232 |
| 2009 | #2800 | ↑1023 |
| 2010 | #2511 | ↑289 |
| 2011 | #2699 | ↓188 |
| 2012 | #1923 | ↑776 |
| 2013 | #1492 | ↑431 |
| 2014 | #1375 | ↑117 |
| 2015 | #1287 | ↑88 |
| 2016 | #1221 | ↑66 |
| 2017 | #1510 | ↓289 |
| 2018 | #1360 | ↑150 |
| 2019 | #1327 | ↑33 |
| 2020 | #1209 | ↑118 |
| 2021 | #1339 | ↓130 |
| 2022 | #1282 | ↑57 |
| 2023 | #1346 | ↓64 |
| 2024 | #1060 | ↑286 |
| 2025 | #927 | ↑133 |
Frequently asked questions about Caius
Is Caius a popular name?
Yes — Caius currently ranks #927 among boys’ names in United States as of 2025, based on official birth records.
Is Caius more common for boys or girls?
Caius is recorded predominantly as a boys’ name in official United States birth data.
When was Caius most popular?
Caius peaked in 2025 in United States, with 254 recorded births that year.
Is Caius rising or falling in popularity?
In United States, Caius’s popularity is rising — its rank has improved from #8800 in 1994 to #927 in 2025.
How many babies have been named Caius?
At least 2,726 babies have been recorded with the name Caius across official birth statistics in 5 countries.
Is Caius popular in more than one country?
Yes — Caius appears in official birth records in 5 countries: United States, England & Wales, Scotland, Northern Ireland, France.
What names are similar in popularity to Caius?
Based on real 2025 ranking data in United States, names ranked closest to Caius include Kiaan, Darian, Agastya.
Similar names right now
Ranked directly next to Caius in United States, 2025 — a real popularity match, not a subjective list.