In 2025, 265 US girls were named Nancy, making it the 967th most common girls’ name of the year, down 51 places from #916 in 2024. That is 25 fewer than the 290 girls named Nancy in 2024. Its best rank for girls was #6, reached in 1950. The most girls given the name in a single year was 32,445, in 1947. For comparison, it was #814 in 2015 and #6 in 1950.
Social Security card records list Nancy in every one of the 146 years from 1880 to 2025; in 1880 there were 410 babies with the name. In all, 1,007,393 US babies have been given the name, 99.7% of them girls and 0.3% boys. Its busiest decade was the 1950s, with 287,352 babies named Nancy.
Over the 10 years from 2016 to 2025, 2,925 US girls were named Nancy; the busiest of those years was 2018, with 326. In 2025 that was about 1 in 6,065 of the girls in SSA’s list for the year.
Among the states, Nancy ranked highest in Pennsylvania in 2025, at #461 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Nan (10,274 babies since 1880), Nanci (6,474 babies since 1880), Nancie (3,296 babies since 1880) and Nancee (1,358 babies since 1880). Rarer spellings such as Nancye, Nance and Nancey are summarised on this page. The open nickname list we use links it to Ann, Nan and Nanny.