Lani has been given to about 7,556 people in the United States since 1880. It was most common in 1979, which makes it a boomer-era name.
Its best year was 1979, when 143 babies were given the name, ranking 999th. The typical living American called Lani is about 41 years old today. It is relatively most common in Indiana, where it accounts for 0.01% of births.
Source: US Social Security Administration, national and state name files, 2025 release, and the Office for National Statistics for England and Wales. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.