Nansi
Nansi was last recorded in 2009, when 5 babies were given it; 167 Americans have been recorded with it between 1947 and 2009 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Nansi by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Nansi mean?
Wiktionary, Welsh section
Nansi is “a female given name, equivalent to English Nancy”
Meaning: Wiktionary, Welsh section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Nansi?
Unranked in 2025
Its last girls’ rank on record is #19,341, in 2009; SSA lists a name only in years with 5 or more births.
18 babies in 1986, the peak
Nansi peaked in 1986, when 18 girls were given it, #4,474 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2009 | 5 | #19,341 | 2.7 |
| 2006 | 5 | #19,172 | 2.6 |
| 2005 | 8 | #12,666 | 4.3 |
| 2004 | 6 | #15,490 | 3.3 |
| 2002 | 7 | #13,206 | 3.9 |
| 2001 | 9 | #10,747 | 5.0 |
| 2000 | 5 | #16,783 | 2.8 |
| 1998 | 5 | #15,830 | 2.8 |
| 1996 | 8 | #10,237 | 4.6 |
| 1995 | 12 | #7,374 | 6.8 |
Every recorded year (22)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1994 | 5 | #15,000 | 2.8 |
| 1993 | 6 | #12,910 | 3.3 |
| 1991 | 9 | #9,105 | 4.8 |
| 1990 | 11 | #7,687 | 5.8 |
| 1989 | 8 | #9,356 | 4.3 |
| 1987 | 8 | #8,486 | 4.6 |
| 1986 | 18 | #4,474 | 10.5 |
| 1985 | 8 | #8,055 | 4.6 |
| 1983 | 9 | #7,099 | 5.4 |
| 1982 | 5 | #11,691 | 3.0 |
| 1949 | 5 | #5,798 | 2.9 |
| 1947 | 5 | #5,875 | 2.8 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Nansi a boy’s or a girl’s name?
Nansi has been recorded only for girls: SSA lists no boys with the name in 22 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Nansi: the SSA national file counts each sex separately.
How many people are named Nansi, and how old are they?
An estimated 160 Americans named Nansi and born in the U.S. are alive in 2026 (96% of everyone recorded); the median is 35 years old and half are between 26 and 40. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 350 people named Nansi (350 women and girls, 0 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 162 born in the U.S. The Census count is 2.2 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names spelled alike
Of these 4 names spelled alike, given to 1,367 babies since 1880, Nansi is the third most given (12% of them). In 2025 none of their 32 babies recorded by SSA was a Nansi (SSA lists a name only with 5 or more babies of one sex).
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Nansi
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Nansi and names like it
- Compare Nansi and NaysaBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1980sNansi peaked in 1986.
- California’s most given namesThe state where SSA recorded the most babies named Nansi since 1910.
- Welsh namesWiktionary’s origin for Nansi: every such name, by how often it is given.
- The top names of 1986The year the most babies were named Nansi.
- The names of the MillennialsMost people named Nansi alive today were born 1981-1996.
- Names starting with NMost given first.