Nairobi is a distinctive girls' name in United States, ranking #1124 in 2020 with 215 recorded births. The name reached its all-time peak in 2021 with 242 births ranking #1043. Since 1996, the popularity has increased by 1,854.5%. In 2020, approximately 1 in every 7,514 girls born was named Nairobi. FALLING Recent data shows the name is currently falling.