Spellings
Kairo or Cairo?
In the US in 2025, 52% of babies in this name family were spelled Kairo and 32% Cairo. Same name, slightly different impression: here are the figures for each spelling.
Ten years ago
The order has flipped. In 2015, Cairo led with 68% of the family's births; in 2025, Kairo leads with 52%. All spellings together, the family went from 329 to 3,005 births (×9).
| Spelling | 2015 | 2025 | Change |
|---|---|---|---|
| Kairo | 82 | 1,577 | ×19 |
| Cairo | 223 | 965 | ×4 |
| Kyro | 24 | 463 | ×19 |
How they sound
All of these spellings are said the same way: /ˈkaɪroʊ/ (KY-roh). So the choice is about how it looks: it is the spelling people will read on a birth card, a name tag or an email address, and the one your child will sometimes spell out.
In France
In France in 2025: Kairo 5 births and Cairo 5 births. The other spellings are not given there often enough to be counted.
Sources: Social Security Administration (SSA), Insee (France), 2025 data. How we calculate these figures.
Which spelling is yours?
The one-minute style quiz.