Lennox has been given to about 19,739 people in the United States since 1880. It was most common in 2022, which makes it a current name.
Lennox ranks 717th among American unisexs in 2025, with 1,552 born that year. Its best year was 2022, when 1,915 babies were given the name, ranking 612th. The typical living American called Lennox is about 6 years old today. It is relatively most common in Iowa, where it accounts for 0.11% 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.