Total births
50
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.
- #16530
- among girls today
- 50
- born since 2005
- 2020s
- peak decade
- 7%
- more common than other girls
Yes -- Deilyn is the #16530 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 #16530 as of the latest data, more common than 7% 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.
- #16530 among girls today
- 50 born since 2005
- 2020s peak decade
- 7% more common than other girls
Data updated Jun 2026
The verdict
Deilyn is currently the #16530 girls' name in America, more common than 7% of girls - 50 born since 2005, peaking in the 2020s.
- #16530
- among girls today
- 50
- born since 2005
- 2020s
- peak decade
- 7%
- more common than other girls
Deilyn vs. every other girls name in current SSA rankings
#16530
of 17,726 girls in use
More common than 7% of names given to girls today.
2020s
Peak decade
54% of everyone ever named Deilyn was born in this single decade.
2025
Single peak year
9 babies were named Deilyn in 2025 - its busiest year on record.
How Deilyn compares
50 15th percentile among 17,726 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 (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 50 | 382 | 567,345 |
| Peak-year births | 9 | 48 | 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 at a glance
Outside the top 1,000Peak year
2025
Current rank
#16,530
Active since
2005
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
Total births in each ten-year window, peak vs trough at a glance
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
How popular is the name Deilyn? ▼
Since 2005, Social Security records show 50 babies named Deilyn. Today it holds rank #16530 among girls. Its busiest year on record was 2025, with 9 births.
When was Deilyn most popular? ▼
Deilyn was most popular in the 2020s decade with 27 total births. The single peak year was 2025.
How long has the name Deilyn been used? ▼
Records for Deilyn go back to 2005, giving 21 years of history through 2025.
What names are similar to Deilyn? ▼
Names with a similar sound or spelling include Deirdre, Deidre, Deidra, Deisy, and 4 more. These share a common prefix and are also used for girls.
Keep exploring Deilyn
Nearby Names Like Deilyn
Names with a similar sound, spelling, or feel to Deilyn
Deirdre Girl
#9630 16,845 births
Deidre Girl
14,673 births
Deidra Girl
10,287 births
Deisy Girl
#3601 3,107 births
Deirdra Girl
1,172 births
Compare Deilyn side by side: Deilyn vs Deirdre Deilyn vs Deidre Deilyn vs Deidra
Related Names
Names with a similar popularity rank to Deilyn
Data Sources
Data as of June 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).
Cite this page
NameAlmanac Editorial. "Deilyn: #16530 Girls' Name - 50 Births, Peak 2025." NameAlmanac. Accessed via https://namealmanac.com/name/deilyn. Licensed CC BY-SA 4.0.
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 June 2026.