Alaina has been given to about 50,584 people in the United States since 1880. It was most common in 2011, which makes it a millennial-parent name.
Alaina ranks 224th among American girls in 2025, with 1,366 born that year. Its best year was 2011, when 1,999 babies were given the name, ranking 156th. The typical living American called Alaina is about 16 years old today. It is relatively most common in Delaware, where it accounts for 0.13% 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.