Kailei is a distinctive girls' name in United States, ranking #4417 in 2007 with 34 recorded births. The name reached its all-time peak in 2004 with 34 births ranking #4135. Since 1996, the popularity has increased by 325.0%. In 2007, approximately 1 in every 56,543 girls born was named Kailei. FALLING Recent data shows the name is currently falling.