Kailani is a moderately popular girls' name in United States, ranking #253 in 2025 with 1,215 recorded births. The name reached its all-time peak in 2022 with 1,349 births ranking #222. Since 1996, the popularity has increased by 6,294.7%. In 2025, approximately 1 in every 1,323 girls born was named Kailani. STABLE Recent data shows the name is currently stable.