In 2025, 981 US girls were named Harlow, making it the 309th most common girls’ name of the year, down 16 places from #293 in 2024. That is 102 fewer than the 1,083 girls named Harlow in 2024. Its best rank for girls was #237, reached in 2021. That year also had the most girls given the name: 1,278. For comparison, it was #422 in 2015 and unranked in 1950.
In 2025, 167 US boys were named Harlow, making it the 1,214th most common boys’ name of the year, up 32 places from #1,246 in 2024. That is 8 more than the 159 boys named Harlow in 2024. Its best rank for boys was #721, reached in 1884. The most boys given the name in a single year was 182, in 2023. For comparison, it was #4,211 in 2015 and #1,969 in 1950.
Social Security card records list Harlow in 104 years of the 146 from 1880 to 2025, starting in 1882 with 5 babies. In all, 16,655 US babies have been given the name, 84% of them girls and 16% boys. Its busiest decade was the 2020s, with 7,594 babies named Harlow.
Over the 10 years from 2016 to 2025, 10,229 US girls were named Harlow; the busiest of those years was 2021, with 1,278. In 2025 that was about 1 in 1,638 of the girls in SSA’s list for the year.
Among the states, Harlow ranked highest in South Dakota in 2025, at #89 for girls there. It was in the top 100 in 1 state (counting DC). Related spellings in the SSA files include Harlowe (1,060 babies since 1880).