Kairo
Girl name · #4255 in 2025 · Very rare
How old is the name Kairo? In official American birth records, Kairo has been tracked continuously since 2015, giving it 10 years of documented American history.
Kairo ranks #4255 among American girls' names as of 2025, with 34 newborns given the name that year. A decade ago it stood at #16419, so the name has been rising over the past ten years. Roughly one in every 52,941 girls born in 2025 was named Kairo.
The 10-year story
Kairo first appears in the Social Security records in 2015, when 5 girls received the name. Its peak came in 2019, when 48 girls were named Kairo — good for #3272 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Kairo per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Kairo against up to 5 other names.
Uniqueness: will there be another Kairo in class?
On our rarity read — which blends how common Kairo is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Kairo will likely be the only one in the room, with the occasional spelling-out as the price.
Where Kairo is most common
State-level data for Kairo is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Kairo
Statistically, parents drawn to Kairo tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Cairo, Kaoir, Kleo, Namiko, and Kaior.
CairoKaoirKleoNamikoKaiorKnovaKiorKyari
Rank history (last 25 years)
| Year | Babies named Kairo | Rank |
|---|---|---|
| 2025 | 34 | #4172 |
| 2024 | 37 | #3963 |
| 2023 | 46 | #3428 |
| 2022 | 42 | #3653 |
| 2021 | 34 | #4167 |
| 2020 | 24 | #5168 |
| 2019 | 48 | #3272 |
| 2018 | 12 | #8617 |
| 2017 | 7 | #12713 |
| 2016 | 6 | #14331 |
| 2015 | 5 | #16419 |
Frequently asked questions
How old is the name Kairo?
In official American birth records, the name Kairo first appeared in 2015 (over 10 years ago), when 5 newborn girls received the name. It has been tracked in modern national records for 10 years.
Is Kairo a popular girl name?
Kairo ranked #4255 among girls in 2025 with 34 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #16419.
When was the name Kairo most popular?
Kairo peaked in 2019, when 48 American girls received the name (ranked #3272 that year). Since 2019 the name has declined from that high.
How rare is the name Kairo?
In 2025, roughly 1 in 52,941 newborn American girls was named Kairo. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.