In 2025, 1,160 US boys were named Lennox, making it the 289th most common boys’ name of the year, down 25 places from #264 in 2024. That is 164 fewer than the 1,324 boys named Lennox in 2024. Its best rank for boys was #248, reached in 2022. That year also had the most boys given the name: 1,427. For comparison, it was #490 in 2015 and #3,527 in 1950.
In 2025, 392 US girls were named Lennox, making it the 717th most common girls’ name of the year, down 30 places from #687 in 2024. That is 22 fewer than the 414 girls named Lennox in 2024. Its best rank for girls was #589, reached in 2020. The most girls given the name in a single year was 497, in 2021. For comparison, it was #745 in 2015 and unranked in 1950.
Social Security card records list Lennox in 72 years of the 146 from 1880 to 2025, starting in 1918 with 5 babies. In all, 19,739 US babies have been given the name, 27% of them girls and 73% boys. Its busiest decade was the 2020s, with 10,527 babies named Lennox.
Over the 10 years from 2016 to 2025, 11,125 US boys were named Lennox; the busiest of those years was 2022, with 1,427. In 2025 that was about 1 in 1,472 of the boys in SSA’s list for the year.
Among the states, Lennox ranked highest in Iowa in 2025, at #154 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Lenox (2,598 babies since 1880), Lennix (921 babies since 1880) and Lynnox (677 babies since 1880). Rarer spellings such as Lenyx, Lennyx and Lenix are summarised on this page.