In 2025, 107 US boys were named Arlen, making it the 1,587th most common boys’ name of the year, up 99 places from #1,686 in 2024. That is 8 more than the 99 boys named Arlen in 2024. Its best rank for boys was #380, reached in 1934. That year also had the most boys given the name: 206. For comparison, it was #2,255 in 2015 and #674 in 1950.
In 2025, 22 US girls were named Arlen, making it the 5,576th most common girls’ name of the year, up 401 places from #5,977 in 2024. That is 2 more than the 20 girls named Arlen in 2024. Its best rank for girls was #2,459, reached in 1937. The most girls given the name in a single year was 31, in 2007. For comparison, it was #5,855 in 2015 and unranked in 1950.
Social Security card records list Arlen in 114 years of the 146 from 1880 to 2025, starting in 1909 with 5 babies. In all, 8,154 US babies have been given the name, 9.9% of them girls and 90% boys. Its busiest decade was the 1930s, with 1,713 babies named Arlen.
Over the 10 years from 2016 to 2025, 790 US boys were named Arlen; the busiest of those years was 2025, with 107. In 2025 that was about 1 in 15,963 of the boys in SSA’s list for the year.
Among the states, Arlen ranked highest in Tennessee in 2025, at #780 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Arlene (143,371 babies since 1880), Arline (17,626 babies since 1880), Arleen (12,617 babies since 1880) and Arlin (4,884 babies since 1880). Rarer spellings such as Arland are summarised on this page.