Kirk has been given to about 68,264 people in the United States since 1880. It was most common in 1962, which makes it a boomer-era name.
Its best year was 1962, when 2,560 babies were given the name, ranking 138th. The typical living American called Kirk is about 60 years old today. It is relatively most common in California, where it accounts for 0.00% 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.