Kailei is a distinctive girls' name in United States, ranking #4449 in 2010 with 33 recorded births. The name reached its all-time peak in 2004 with 34 births ranking #4135. Since 1996, the popularity has increased by 312.5%. In 2010, approximately 1 in every 53,858 girls born was named Kailei. FALLING Recent data shows the name is currently falling.