Caia
Caia was the 2696th most popular name for girls in 2025, given to 64 babies. Its best year was 2024, when it ranked 2138th; the most babies were born in 2023 (89). Over the last ten years it has moved up 21 places. More babies were named Caia in the 2010s than in any other decade.
Meaning (as Kaia) Origin uncertain · Estonian, Norwegian, Hawaiian
- Rank in 2025
- #2,696 girls, down 411 places since 2020
- Babies in 2025
- 64girls
- Girls and boys
- Almost always a girl’s name2021–2025
- Peak year
- 202389 babies
- Total since 1880
- 1,201babies recorded
What does the name Caia mean?
Caia is a spelling of Kaia, pronounced the same way, so it shares Kaia's meaning and origin.
Kaia has more than one source. Wiktionary records it as an Estonian girl's name, a variant of Katariina (Katherine), and Wikipedia describes it as Estonian and Norwegian. Wikipedia also notes its use as a feminine of Kai, which in Hawaiian means 'sea'. In the US both associations are common, and parents may also see it as a form of Kaya or Kaja.
Katariina (Estonian, “Katherine”)kai (Hawaiian, “sea”)
How sure is this? Uncertain. Scandinavian/Estonian pet form of Katherine, or a feminine of Kai; both are documented.
Related names: Kaja, Kai, Kaya, Katherine.
See also: Scandinavian names.
Sources for this meaning
- Wiktionary, entry 'Kaia', Wiktionary (Wikimedia Foundation); facts restated, no text reused
- Wikipedia, 'Kaia (name)', Wikipedia (Wikimedia Foundation); facts restated, no text reused
- Wiktionary, entry 'kai', Wiktionary (Wikimedia Foundation); facts restated, no text reused
Caia popularity since 1880
| Year | Rank (girls) | Babies (girls) |
|---|---|---|
| 2025 | #2,696 | 64 |
| 2020 | #2,285 | 78 |
| 2010 | #5,812 | 23 |
| 2000 | — | — |
| 1990 | — | — |
| 1980 | — | — |
| 1970 | — | — |
| 1960 | — | — |
| 1950 | — | — |
| 1940 | — | — |
| 1930 | — | — |
| 1920 | — | — |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Caia, counting every spelling?
Caia is a spelling of Kaia, a name family that ranked #178 for girls in 2025 once every spelling is counted together, compared with #2,696 for Caia on its own. Together these spellings went to 1,962 girls in 2025.
| Spelling | Babies 2025 | Official rank | Babies 2021–2025 |
|---|---|---|---|
| Kaia | 1,618 | #193 | 7,550 |
| Kaya | 206 | #1,133 | 1,230 |
| Caia | 64 | #2,696 | 388 |
| Kaiah | 52 | #3,119 | 299 |
| Kayah | 22 | #5,639 | 77 |
| Caya | — | — | 29 |
Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.
How many kids will share the name Caia?
64 of the 3,606,400 babies born in the US in 2025 were named Caia (0.02 per 1,000 births). For a girl named Caia born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 131 (of 430 pupils) would have a child named Caia.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Caia?
About 1,200 people born in the US named Caia are alive today, with a median age of 8; half are between 4 and 13. That makes Caia a young name: most people with it are children.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Caia by state
How common Caia was among girls born in each state in 2021–2025. It is notably more common than nationally in California (1.7×). In 45 states fewer than five girls a year got the name, too few for SSA to publish, so those states show as zero.
Names with a similar history
These names rose and fell in step with Caia: their share of US girls followed the most similar curve since 1880. If you like Caia, they share its era and feel.
Questions about the name Caia
What does Caia mean?
The origin of Kaia is uncertain: Scandinavian/Estonian pet form of Katherine, or a feminine of Kai; both are documented.
How popular is the name Caia?
Caia was the 2696th most popular name for girls in 2025, given to 64 babies. Its best year was 2024, when it ranked 2138th; the most babies were born in 2023 (89). Over the last ten years it has moved up 21 places. More babies were named Caia in the 2010s than in any other decade.
Is Caia a boy or girl name?
In 2021–2025, almost always a girl’s name given the name Caia in the US.
Where is Caia most popular?
In 2021–2025, Caia was most common in California (0.08 per 1,000 girls), followed by Maryland and Texas.