Kailani ranked #584 among U.S. baby names in 2024. Since 1980, 11,598 babies have been named Kailani, peaking in 2022 with 1,357 births. The 2020s were its biggest decade, with 6,101 births. Kailani is on the rise, up about 111% over the past five years. It is predominantly a girls' name.