Kaiya has been given to about 8,620 people in the United States since 1880. It was most common in 2002, which makes it a millennial-parent name.
Kaiya ranks 994th among American girls in 2025, with 255 born that year. Its best year was 2002, when 404 babies were given the name, ranking 651st. The typical living American called Kaiya is about 15 years old today. It is relatively most common in Washington, where it accounts for 0.02% 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.