Nairobi is a distinctive girls' name in United States, ranking #7013 in 2007 with 19 recorded births. The name reached its all-time peak in 2021 with 242 births ranking #1043. Since 1996, the popularity has increased by 72.7%. In 2007, approximately 1 in every 101,181 girls born was named Nairobi. FALLING Recent data shows the name is currently falling.