Girls' name · since 2005
Deilyn
Deilyn has 50 recorded births since 2005 in federal Social Security data, most heavily in 2025 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #34,979 of 72,339
- all-time among girls
- #10,598 of 17,297
- 2025 SSA year
- 50
- born since 2005
- 2020s
- peak decade
Yes -- Deilyn is the #10598 most popular girls' name in the U.S. today, with 50 recorded since 2005.
Deilyn has 50 recorded births among girls since 2005, per the U.S. Social Security Administration, ranked #10598 as of the latest data, more common than 39% of girls, busiest in the 2020s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 2005 to 2025.
- #34,979 of 72,339 all-time among girls
- #10,598 of 17,297 2025 SSA year
- 50 born since 2005
- 2020s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Deilyn ranks #34,979 of 72,339 girls' names by all-time recorded births (highest first) and #10,598 of 17,297 among girls' names in 2025. 50 born since 2005, peaking in the 2020s.
- #34,979 of 72,339
- all-time among girls
- #10,598 of 17,297
- 2025 SSA year
- 50
- born since 2005
- 2020s
- peak decade
Deilyn's 50 recorded births place it above 51.4% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
How Deilyn compares
50 16th percentile among 17,297 names currently given to girls
Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Deilyn's all-time total is 87% below the median girls name, and Olivia still leads by a wide margin.
| Metric | Deilyn | Median girls name (Kyann) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 50 | 376 | 567,345 |
| Peak-year births | 9 | 21 | 19,840 |
Deilyn's usage pattern, beyond the headline number
Deilyn splits its recorded history at 2021: 54% of all births land in the more recent half, 46% in the earlier half, an evenly balanced pattern over time. The single quietest year was 2005 (5 births) -- compare that against the 2025 peak of 9 for a sense of just how much the name's popularity has swung.
Deilyn popularity over time
Annual U.S. births registered with the Social Security Administration · 2005–2025
- Peak year (2025)
- 9
- Annual births at peak, across 21 years of records
Deilyn by decade
2020s is the heaviest window (27 births, 54% of the file).
2020s was Deilyn's strongest decade.
27 babies received the name during that ten-year window, about 54% of all-time use.
Deilyn births by decade
Total births in each ten-year window
- 2000s
2000s
11 births
- 2010s
2010s
12 births
- 2020s
2020s
27 births
What this shows Peak: 2020s at 27 births (54% of all-time use).
Frequently Asked Questions
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Keep exploring Deilyn
Nearby Names Like Deilyn
Names with a similar sound, spelling, or feel to Deilyn
Compare Deilyn side by side: Deilyn vs Deirdre Deilyn vs Deidre Deilyn vs Deidra
Related Names
Names with a similar popularity rank to Deilyn
Nationwide names with similar peak year or record span
Two nationwide peer axes for Deilyn: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2025)
Similar record span (~20 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, 2005–2025 (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 Deilyn 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.