Kairo is a moderately popular boys' name in United States, ranking #307 in 2019 with 1,109 recorded births. The name reached its all-time peak in 2025 with 1,577 births ranking #226. Since 1996, the popularity has increased by 8,430.8%. In 2019, approximately 1 in every 1,617 boys born was named Kairo. STABLE Recent data shows the name is currently stable.
Kairo is a modern spelling of Cairo used as a given name. Its sense is essentially place-based, pointing back to the city name rather than to an older personal-name meaning.
Behind the Name treats Kairo as a modern English variant of Cairo. It fits the wider trend of turning place names into first names, with the altered spelling giving it a sharper contemporary feel.