Nairobi is a distinctive girls' name in United States, ranking #11044 in 2003 with 9 recorded births. The name reached its all-time peak in 2021 with 242 births ranking #1043. Since 1996, the popularity has decreased by 18.2%. In 2003, approximately 1 in every 203,006 girls born was named Nairobi. FALLING Recent data shows the name is currently falling.