Unisex name · since 1991

Dillyn

Dillyn has 412 recorded births since 1991 in federal Social Security data, most heavily in 1999 -- full year-by-year trend, decade aggregates, and state rankings follow.

#8,856 of 45,481
all-time among boys
412
born since 1991
2000s
peak decade

412 boys have been named Dillyn since 1991, though it isn't currently a top-ranked name.

Dillyn has 412 recorded births among boys since 1991, per the U.S. Social Security Administration, though it falls outside today's most-used boys names, busiest in the 2000s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1991 to 2023.

  • #8,856 of 45,481 all-time among boys
  • 412 born since 1991
  • 2000s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Dillyn ranks #8,856 of 45,481 boys' names by all-time recorded births (highest first). 412 born since 1991, peaking in the 2000s.

#8,856 of 45,481
all-time among boys
412
born since 1991
2000s
peak decade
Above the archive median
All-time archive position

Dillyn's 412 recorded births place it above 80.49% of the 45,481 boys names in the full SSA archive.

National only
State-record footprint

No state rows cleared SSA’s public reporting threshold for this name.

Dillyn's usage pattern, beyond the headline number

Divide Dillyn's SSA record in two at 2005 and the more recent half accounts for 45% of all births, the earlier half the remaining 55%, a genuinely balanced usage pattern. Its calmest year was 2020, with only 5 births recorded -- set against the 1999 peak of 24, that's the full swing in one name's fortunes.

Dillyn popularity over time - boys

Annual U.S. births registered with the Social Security Administration · 1991–2023

Last recorded 2023
Peak year (1999)
24
Annual births at peak, across 33 years of records
0510152025 19911995199920032007201120162023 5

Dillyn popularity over time - girls

222 total births recorded since 2002 (Dillyn as girls' name)

Unisex variant - 222 births
05101520 20022005200820112014201720202023 6

Dillyn by decade

2000s is the heaviest window (186 births, 45% of the file).

2000s was Dillyn's strongest decade.

186 babies received the name during that ten-year window, about 45% of all-time use.

Dillyn births by decade

Total births in each ten-year window

births

What this shows Peak: 2000s at 186 births (45% of all-time use).

Source U.S. Social Security Administration · Baby Names As of August 2026

Frequently Asked Questions

How popular is the name Dillyn? ▼
412 babies have been named Dillyn since 1991. All-time, it sits at #8,856 of 45,481 boys' names by recorded births. It was last recorded in 2023. The peak year was 1999 with 24 births.
Where does Dillyn sit in the SSA name archive? ▼
According to the U.S. Social Security Administration, Dillyn ranks #8,856 of 45,481 boys' names by all-time recorded births (highest first). All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the null SSA file. See /methodology#corpus-placement.
When was Dillyn most popular? ▼
Dillyn was most popular in the 2000s decade with 186 total births. The single peak year was 1999.
Is Dillyn a unisex name? ▼
Yes, Dillyn is used for both boys and girls. As a boy's name it has 412 births, and as a girl's name it has 222 births.
How long has the name Dillyn been used? ▼
Records for Dillyn go back to 1991, giving 33 years of history through 2023.
What names are similar to Dillyn? ▼
Names with a similar sound or spelling include Dillon, Dillan, Dilan, Dillard, and 4 more. These share a common prefix and are also used for boys.

What to do with Dillyn's data

  • Dillyn's decade-level peak was the 2000s (186 total births); usage has since declined to 10 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.

Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.

Keep exploring Dillyn

Nearby Names Like Dillyn

Names with a similar sound, spelling, or feel to Dillyn

Dillon Boy
#929 65,225 births
Dillan Boy
#3880 6,994 births
Dilan Boy
#806 6,034 births
Dillard Boy
3,730 births
Dillion Boy
#5468 3,655 births

Compare Dillyn side by side: Dillyn vs Dillon Dillyn vs Dillan Dillyn vs Dilan

Or pick any two names to compare →

Related Names

Names with a similar number of total births

Theordore
412 births · Peak 1920
Excell
412 births · Peak 1944
Hyatt #6190
412 births · Peak 2010
Troyce
412 births · Peak 1966
Randale
412 births · Peak 1986
Chadley
412 births · Peak 1983
Channon
412 births · Peak 1971
Toddrick
412 births · Peak 1992

Nationwide names with similar peak year or record span

Two nationwide peer axes for Dillyn: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.

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, 1991–2023 (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 Dillyn 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.