In 2025, 42 US girls were named Irelynn, making it the 3,604th most common girls’ name of the year, down 250 places from #3,354 in 2024. That is 5 fewer than the 47 girls named Irelynn in 2024. Its best rank for girls was #1,905, reached in 2008. That year also had the most girls given the name: 111. For comparison, it was #1,988 in 2015 and unranked in 1950.
Social Security card records list Irelynn in 28 years of the 146 from 1880 to 2025, starting in 1998 with 14 babies. In all, 1,740 US babies have been given the name, all of them girls. Its busiest decade was the 2010s, with 891 babies named Irelynn.
Over the 10 years from 2016 to 2025, 750 US girls were named Irelynn; the busiest of those years was 2021, with 100. In 2025 that was about 1 in 38,268 of the girls in SSA’s list for the year.
Related spellings in the SSA files include Irelyn (1,594 babies since 1880). Rarer spellings such as Eralynn, Erilynn and Irelan are summarised on this page.