Nairobi is a distinctive girls' name in United States, ranking #1870 in 2025 with 106 recorded births. The name reached its all-time peak in 2021 with 242 births ranking #1043. Since 1996, the popularity has increased by 863.6%. In 2025, approximately 1 in every 15,163 girls born was named Nairobi. FALLING Recent data shows the name is currently falling.