In 2025, 725 US girls were named Trinity, making it the 428th most common girls’ name of the year, down 28 places from #400 in 2024. That is 66 fewer than the 791 girls named Trinity in 2024. Its best rank for girls was #48, reached in 2005. The most girls given the name in a single year was 5,638, in 2004. For comparison, it was #129 in 2015 and unranked in 1950.
Social Security card records list Trinity in 64 years of the 146 from 1880 to 2025, starting in 1921 with 6 babies. In all, 88,192 US babies have been given the name, 97% of them girls and 3.2% boys. Its busiest decade was the 2000s, with 47,619 babies named Trinity.
Over the 10 years from 2016 to 2025, 13,368 US girls were named Trinity; the busiest of those years was 2016, with 2,241. In 2025 that was about 1 in 2,217 of the girls in SSA’s list for the year.
Among the states, Trinity ranked highest in Mississippi in 2025, at #142 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Triniti (2,994 babies since 1880) and Trinitee (1,552 babies since 1880). Rarer spellings such as Trenity, Trynity and Trinitie are summarised on this page.