Aideen — unisex name
140 babies named Aideen in U.S. Social Security records since 1999, with the highest year being 2018. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
56% of everyone ever named Aideen was born in this single decade.
13 babies were named Aideen in 2018 — its busiest year on record.
What the Data Says About Aideen
The Social Security Administration has registered 140 babies named Aideen between 1999 and 2020, spanning 22 consecutive years of U.S. birth records. As a girl's name, Aideen currently falls outside the top 1,000 girls' names for 2020. The name reached its historical peak in 2018, when 13 babies received it in a single year. Aideen is classified as unisex in SSA records: the opposite-sex variant accounts for 60 additional births since 2009.
Decade-level aggregation shows that Aideen performed strongest in the 2010s, accumulating 79 births during that ten-year window. Across the 4 decades of recorded activity, Aideen shows a clear decline from its mid-century high.
No etymological entry is currently available for Aideen 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 140 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.
Aideen at a glance
Last recorded 2020Peak year
Current rank
Active since
Aideen popularity over time — girls
Annual U.S. births registered with the Social Security Administration · 2020–1999
- Peak year (2018)
- 13
- Annual births at peak — across 22 years of records
No longer in the modern top-1000 — last recorded 2020.
140 total births across 22 years of SSA records. Peaked in 2018 with 13 births in a single year.
Aideen popularity over time — boys
60 total births recorded since 2009 (Aideen as boys' name)
Unisex use is substantial
The boys' variant of Aideen accounts for 30% of total recorded use across both genders.
Aideen by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 2010s
- 79 births that decade — 56% of Aideen's all-time total
Aideen decade highlights
- Peak decade 79 births
- Runner-up 51 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
2010s was Aideen's strongest decade
79 babies received the name during that ten-year window — about 56% of all-time use.
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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, 1999–2020 (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.