Kairo is a moderately popular boys' name in United States, ranking #263 in 2021 with 1,316 recorded births. The name reached its all-time peak in 2023 with 1,488 births ranking #234. Since 1996, the popularity has increased by 10,023.1%. In 2021, approximately 1 in every 1,328 boys born was named Kairo. STABLE Recent data shows the name is currently stable.