Nairobi is a distinctive girls' name in United States, ranking #5476 in 2017 with 24 recorded births. The name reached its all-time peak in 2021 with 242 births ranking #1043. Since 1996, the popularity has increased by 118.2%. In 2017, approximately 1 in every 71,912 girls born was named Nairobi. FALLING Recent data shows the name is currently falling.