Kailani is a moderately popular girls' name in United States, ranking #278 in 2021 with 1,138 recorded births. The name reached its all-time peak in 2022 with 1,349 births ranking #222. Since 1996, the popularity has increased by 5,889.5%. In 2021, approximately 1 in every 1,441 girls born was named Kailani. FALLING Recent data shows the name is currently falling.