In 2025, 767 US girls were named Brynn, making it the 407th most common girls’ name of the year, down 24 places from #383 in 2024. That is 53 fewer than the 820 girls named Brynn in 2024. Its best rank for girls was #189, reached in 2012. The most girls given the name in a single year was 1,665, in 2011. For comparison, it was #259 in 2015 and #2,551 in 1950.
Social Security card records list Brynn in 76 years of the 146 from 1880 to 2025, starting in 1943 with 6 babies. In all, 30,211 US babies have been given the name, 99% of them girls and 1.3% boys. Its busiest decade was the 2010s, with 12,985 babies named Brynn.
Over the 10 years from 2016 to 2025, 9,387 US girls were named Brynn; the busiest of those years was 2016, with 1,238. In 2025 that was about 1 in 2,096 of the girls in SSA’s list for the year.
Among the states, Brynn ranked highest in Alaska in 2025, at #93 for girls there. It was in the top 100 in 1 state (counting DC). Related spellings in the SSA files include Bryn (8,861 babies since 1880), Brynna (3,102 babies since 1880), Brynne (2,709 babies since 1880) and Brian (1,178,298 babies since 1880). Rarer spellings such as Brene are summarised on this page.