In 2025, 327 US girls were named Erin, making it the 833rd most common girls’ name of the year, down 34 places from #799 in 2024. That is 25 fewer than the 352 girls named Erin in 2024. Its best rank for girls was #18, reached in 1983. That year also had the most girls given the name: 14,836. For comparison, it was #336 in 2015 and #1,044 in 1950.
Social Security card records list Erin in 133 years of the 146 from 1880 to 2025, starting in 1888 with 5 babies. In all, 326,053 US babies have been given the name, 97% of them girls and 2.9% boys. Its busiest decade was the 1980s, with 118,013 babies named Erin.
Over the 10 years from 2016 to 2025, 5,760 US girls were named Erin; the busiest of those years was 2016, with 925. In 2025 that was about 1 in 4,915 of the girls in SSA’s list for the year.
Among the states, Erin ranked highest in Connecticut in 2025, at #415 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Arin (4,854 babies since 1880), Aryn (3,373 babies since 1880), Eryn (7,588 babies since 1880) and Erinn (3,561 babies since 1880). Rarer spellings such as Eron, Ehren and Errin are summarised on this page.
Meaning
Meaning not yet researched.
We publish a meaning only with a cited source and a confidence label, and never generate one. Meanings are being researched for the most common names first.
Wikidata records this spelling as a given name in English and Irish. That is where the name is used, not necessarily where it comes from.