Cairo is a moderately popular boys' name in United States, ranking #341 in 2025 with 965 recorded births. The name reached its all-time peak in 2022 with 1,101 births ranking #306. Since 1996, the popularity has increased by 7,323.1%. In 2025, approximately 1 in every 1,770 boys born was named Cairo. STABLE Recent data shows the name is currently stable.