Unisex name · since 1981
Siu
13 babies named Siu in U.S. Social Security records since 1981, with the highest year being 1982. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #51,279 of 72,339
- all-time among girls
- 13
- born since 1981
- 1980s
- peak decade
13 girls have been named Siu since 1981, though it isn't currently a top-ranked name.
According to the U.S. Social Security Administration, Siu has been recorded 13 times among girls since 1981, though it is not among the currently most-used girls names, with its heaviest use in the 1980s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1981 to 1982.
- #51,279 of 72,339 all-time among girls
- 13 born since 1981
- 1980s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Siu ranks #51,279 of 72,339 girls' names by all-time recorded births (highest first). 13 born since 1981, peaking in the 1980s.
- #51,279 of 72,339
- all-time among girls
- 13
- born since 1981
- 1980s
- peak decade
Siu's 13 recorded births place it above 28.96% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Siu's usage pattern, beyond the headline number
Siu splits its recorded history at 1982: 62% of all births land in the more recent half, 38% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1981 (5 births) -- compare that against the 1982 peak of 8 for a sense of just how much the name's popularity has swung.
Siu popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1981–1982
- Peak year (1982)
- 8
- Annual births at peak, across 2 years of records
Siu popularity over time - boys
5 total births recorded since 1991 (Siu as boys' name)
Siu by decade
1980s is the heaviest window (13 births, 100% of the file).
1980s was Siu's strongest decade.
13 babies received the name during that ten-year window, about 100% of all-time use.
Siu births by decade
Total births in each ten-year window
- 1980s
1980s
13 births
What this shows Peak: 1980s at 13 births (100% of all-time use).
Frequently Asked Questions
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Keep exploring Siu
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Siu: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1982)
Similar record span (~1 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1981–1982 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Siu draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.