Kaius
- US rank
- #1,028
- Syllables
- 2
- Peak
- #1,023 in 2020
216 babies were named Kaius in the US in 2025. It has dropped 5 places in five years.
Found on lists
Celebrity Baby Names 2013
Save adds it to your list. Vote moves it up the top voted names.
US births per million boys, 2005–2025
Most popular states (2025)
LA rank #672WI rank #678MO rank #709NC rank #718GA rank #756
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Kaius you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 7,905 baby boys born in the US in 2025 was named Kaius, 216 babies in all. In a typical school of 500 kids, your Kaius would very likely be the only one.
- HistoryKaius first shows up in US birth records in 2005, the first year at least 5 babies got it. That makes it a fairly new name, younger than many of today's parents.
- Best yearIts best year was 2020, when it reached #1,023.
- New on the sceneKaius wasn't given to enough babies to be counted in 2000. It only took off after 2005.
- Where it's lovedKaius is most popular in Louisiana, where it ranks #672, followed by Wisconsin (#678) and Missouri (#709). It's in the top 1,000 in 13 states.
About the name Kaius
Kaius is a boy name. It has 5 letters and 2 syllables, starting with K and ending in “-ius”. US birth records list Kaius for boys from 2005 to 2025, in 21 of those 21 years. Its best year was 2020, when it ranked #1,023 among boy names. In 2025 it ranked #1,028, with 216 babies.
| Decade | Babies per million | About 1 in |
|---|---|---|
| 2000s | 5.3 | 187,266 boys |
| 2010s | 43 | 23,079 boys |
| 2020s | 111 | 9,005 boys |
Other spellings of Kaius
Questions about the name Kaius
Is Kaius a boy or girl name?
Kaius is a boy name.
How popular is the name Kaius?
Kaius ranked #1,028 for US boys in 2025, given to 216 babies. Its best year was 2020 (#1,023).