Sidni — girls' name
236 babies named Sidni in U.S. Social Security records since 1949, with the highest year being 1995. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
47% of everyone ever named Sidni was born in this single decade.
21 babies were named Sidni in 1995 — its busiest year on record.
What the Data Says About Sidni
The Social Security Administration has registered 236 babies named Sidni between 1949 and 2013, spanning 65 consecutive years of U.S. birth records. As a girl's name, Sidni currently falls outside the top 1,000 girls' names for 2013. The name reached its historical peak in 1995, when 21 babies received it in a single year.
Decade-level aggregation shows that Sidni performed strongest in the 1990s, accumulating 112 births during that ten-year window. Across the 5 decades of recorded activity, Sidni shows a clear decline from its mid-century high.
No etymological entry is currently available for Sidni 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 236 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.
Sidni at a glance
Last recorded 2013Peak year
Current rank
Active since
Sidni popularity over time
Annual U.S. births registered with the Social Security Administration · 2013–1949
- Peak year (1995)
- 21
- Annual births at peak — across 65 years of records
No longer in the modern top-1000 — last recorded 2013.
236 total births across 65 years of SSA records. Peaked in 1995 with 21 births in a single year.
Sidni by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 1990s
- 112 births that decade — 47% of Sidni's all-time total
Sidni decade highlights
- Peak decade 112 births
- Runner-up 99 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
1990s was Sidni's strongest decade
112 babies received the name during that ten-year window — about 47% of all-time use.
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Keep exploring Sidni
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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, 1949–2013 (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.