Cairo is a moderately popular boys' name in United States, ranking #306 in 2022 with 1,101 recorded births. The name reached its all-time peak in 2022 with 1,101 births ranking #306. Since 1996, the popularity has increased by 8,369.2%. In 2022, approximately 1 in every 1,584 boys born was named Cairo. FALLING Recent data shows the name is currently falling.