Fewer than five US girls were named Brittni in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #353, reached in 1989. The most girls given the name in a single year was 746, in 1990. For comparison, it was unranked (under five girls) in 2015 and unranked in 1950.
Social Security card records list Brittni in 36 years of the 146 from 1880 to 2025, starting in 1974 with 6 babies. In all, 5,992 US babies have been given the name, 99.8% of them girls and 0.1% boys. Its busiest decade was the 1990s, with 3,271 babies named Brittni.
In none of the 10 years from 2016 to 2025 were five or more US girls named Brittni.
Related spellings in the SSA files include Brittany (361,751 babies since 1880), Brittani (11,776 babies since 1880), Britany (6,562 babies since 1880) and Brittny (3,585 babies since 1880). Rarer spellings such as Brytni, Bryttni and Bryttnie are summarised on this page.