Nairobi is a distinctive girls' name in United States, ranking #13224 in 1997 with 6 recorded births. The name reached its all-time peak in 2021 with 242 births ranking #1043. Since 1996, the popularity has decreased by 45.5%. In 1997, approximately 1 in every 290,110 girls born was named Nairobi. FALLING Recent data shows the name is currently falling.