Meaning & origin
A reliable meaning for Kaius isn’t established in our sources yet. Rather than guess, we show what is recorded: how the name is used, how often, and the names it’s connected to.
The story
Published U.S. birth records include this spelling as early as 2005. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Kaius through the years
- Babies since 1880
- 2,011
- 2,011 boys · 0 girls
- Most popular year
- 2025
- 216 babies
- 2025
- 216
- #1,029 for boys
- 2021–25 vs 2016–20
- +37%
- Rising
Where it’s given
By the numbers
In 2025, this name appeared in 216 U.S. birth records for boys, ranking No. 1,029 among boys’ names. Average annual use for boys was 36.6% higher in 2021–2025 than in 2016–2020. In 2025, Texas had the largest reported state-level birth count for boys with this name (24).
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Kaius’s family of names
The ring: spellings.
Spellings & scripts 2
The same name written differently, including transliterations into other scripts.
People named Kaius
Listed by how widely each person is written about, which says nothing about the name itself.
Similar names
If you love Kaius, these share its style, era, origin or sound, from outside its own family.
Kaizen
99% boys · 1% girls
Kairo
“from the city of Cairo”
97% boys · 3% girls
Kian
“from an ancient family”
>99% boys
Kolson
>99% boys
Cassian
“one who is empty; hollow; vain”
99% boys · 1% girls
Kaysen
“a seer”
97% boys · 3% girls
Kylo
Kylo is a masculine given name.
98% boys · 2% girls
Cairo
“from the city in Egypt” · “one who is victorious; from the capital of Egypt”
95% boys · 5% girls