Recorded 1981–1982 Unisex name Peak 1982 13 births

Siu — unisex name

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.

1980s13
1980s
Peak decade

100% of everyone ever named Siu was born in this single decade.

1982
Single peak year

8 babies were named Siu in 1982 — its busiest year on record.

What the Data Says About Siu

The Social Security Administration has registered 13 babies named Siu between 1981 and 1982, spanning 2 consecutive years of U.S. birth records. As a girl's name, Siu currently falls outside the top 1,000 girls' names for 1982. The name reached its historical peak in 1982, when 8 babies received it in a single year. Siu is classified as unisex in SSA records: the opposite-sex variant accounts for 5 additional births since 1991.

Decade-level aggregation shows that Siu performed strongest in the 1980s, accumulating 13 births during that ten-year window.

No etymological entry is currently available for Siu in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 13 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Siu at a glance

Last recorded 1982

Total births

13

Since 1981

2 years of records

Peak year

1982

8 births that year

Strongest decade: 1980s

Current rank

Unranked

Outside the modern top-1,000

As of 1982

Active since

1981

Recorded for 2 years

Last year on file: 1982

Siu popularity over time — girls

Annual U.S. births registered with the Social Security Administration · 1982–1981

Last recorded 1982
Peak year (1982)
8
Annual births at peak — across 2 years of records
456789 19821981 5

Siu popularity over time — boys

5 total births recorded since 1991 (Siu as boys' name)

Unisex variant — 5 births
5 1991 5

Siu by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 1980s
Peak decade
1980s
13 births that decade — 100% of Siu's all-time total
1980s13

Frequently Asked Questions

How popular is the name Siu?
13 babies have been named Siu since 1981. It was last recorded in 1982. The peak year was 1982 with 8 births.
When was Siu most popular?
Siu was most popular in the 1980s decade with 13 total births. The single peak year was 1982.
Is Siu a unisex name?
Yes, Siu is used for both boys and girls. As a girl's name it has 13 births, and as a boy's name it has 5 births.
How long has the name Siu been used?
Siu has been recorded in Social Security data since 1981, spanning 2 years of data through 1982.

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1981–1982 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.