Nairobi is a distinctive girls' name in United States, ranking #9726 in 2006 with 12 recorded births. This places Nairobi in the top 48% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2021 with 242 births ranking #1043. In 2006, approximately 1 in every 158,423 girls born was named Nairobi. FALLING Recent data shows the name is currently falling.