Kailanii is a very rare variant of Kailani that peaked in 2023 and has grown less common since.
Kailanii is a girl name. In 2025 it ranked #11,385 for girl births in the United States (and #19,190 across all names), given to 8 babies. Kailanii first appears in 2020 and peaked in 2023 (16 births).
Girls named Kailanii per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 2020–2025 · U.S.+territories from SSA territory files (1998–2025)