Adalyn has been given to about 31,014 people in the United States since 1880. It was most common in 2015, which makes it a current name.
Adalyn ranks 260th among American girls in 2025, with 1,192 born that year. Its best year was 2015, when 2,456 babies were given the name, ranking 132nd. The typical living American called Adalyn is about 9 years old today. It is relatively most common in Mississippi, where it accounts for 0.12% 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.