Unisex name · since 1907

Kelly

Kelly has 473,965 recorded births since 1907 in federal Social Security data, most heavily in 1977 -- full year-by-year trend, decade aggregates, and state rankings follow.

#70 of 72,339
all-time among girls
#851 of 17,297
2025 SSA year
473,965
born since 1907
1970s
peak decade

473,965 babies have been named Kelly since 1907, making it today's #851 unisex name.

Kelly has 473,965 recorded births among girls since 1907, per the U.S. Social Security Administration, ranked #851 as of the latest data, more common than 95% of girls, busiest in the 1970s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1907 to 2025.

  • #70 of 72,339 all-time among girls
  • #851 of 17,297 2025 SSA year
  • 473,965 born since 1907
  • 1970s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Kelly ranks #70 of 72,339 girls' names by all-time recorded births (highest first) and #851 of 17,297 among girls' names in 2025. 473,965 born since 1907, peaking in the 1970s.

#70 of 72,339
all-time among girls
#851 of 17,297
2025 SSA year
473,965
born since 1907
1970s
peak decade
0%100%Median name50%95%
Kelly vs. every other girls name in current SSA rankings
Upper archive tier
All-time archive position

Kelly's 473,965 recorded births place it above 99.9% of the 72,339 girls names in the full SSA archive.

51 jurisdictions
State-record footprint

51 jurisdictions carry state-level records, led by California.

How Kelly compares

473,965 Top 1% higher than 99% of 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

Kelly's all-time total is 1,261x the median girls name, and Olivia still leads by a wide margin.

Metric Kelly Median girls name (Kyann) #1 girls name (Olivia)
All-time total births 473,965 376 567,345
Peak-year births 18,234 21 19,840

Kelly's usage pattern, beyond the headline number

Divide Kelly's SSA record in two at 1967 and the more recent half accounts for 80% of all births, the earlier half the remaining 20%, consistent with a name still gaining ground rather than fading. Its calmest year was 1907, with only 5 births recorded -- set against the 1977 peak of 18,234, that's the full swing in one name's fortunes.

Kelly popularity over time - girls

Annual U.S. births registered with the Social Security Administration · 1907–2025

Top 1,000 girls' name
Peak year (1977)
18,234
Annual births at peak, across 119 years of records
05,00010,00015,00020,000 190719231938195319681983199820132025 319

Kelly popularity over time - boys

82,400 total births recorded since 1880 (Kelly as boys' name)

Unisex variant - 82,400 births
01,0002,0003,0004,000 188018991918193719561975199420132025 84

Kelly by decade

1970s is the heaviest window (133,545 births, 28% of the file).

1970s was Kelly's strongest decade.

133,545 babies received the name during that ten-year window, about 28% of all-time use.

Kelly births by decade

Total births in each ten-year window

births

What this shows Peak: 1970s at 133,545 births (28% of all-time use).

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

How Kelly compares to similarly-sized names

Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Kelly's total volume

Kelly vs 15 similarly-sized girls names Scatter plot of 16 data points. 1%2%3%4%5%6% 90100110120130140150 New & already peakedOld name, single-era peakNew & still diversifyingLong history, steady all along Years in SSA records % of total births in the single peak year -146, 2.1%-102, 4.4%-146, 1.9%-146, 1.9%-146, 3.5%-146, 4.4%-146, 5%-146, 3.6%-146, 2.7%-146, 1.9%-146, 5.5%-146, 3%-146, 4%-146, 2%-145, 2.6%Kelly-119, 3.8%Kelly
Kelly vs 15 similarly-sized girls names

Kelly by state

Where Kelly concentrates geographically, total births since 1907

Geographically diffuse
Top 8 states by recorded births for the name Kelly
Rank State Visual share Births Share of total
#1 California
47,515 10.0%
#2 New York
36,710 7.7%
#3 Pennsylvania
31,061 6.6%
#4 Ohio
29,328 6.2%
#5 Illinois
27,035 5.7%
#6 Michigan
25,024 5.3%
#7 Texas
22,375 4.7%
#8 New Jersey
18,075 3.8%
California share of Kelly's total US births 10.0%
Even split

47,515 of 473,965 births nationwide. Compared to a flat distribution across 51 reporting states.

Kelly appears in 51 states. Explore state details →

Frequently Asked Questions

How popular is the name Kelly?
473,965 babies have been named Kelly since 1907. All-time, it sits at #70 of 72,339 girls' names by recorded births. In 2025, it ranks #851 of 17,297 among girls. The peak year was 1977 with 18,234 births.
Where does Kelly sit in the SSA name archive?
According to the U.S. Social Security Administration, Kelly ranks #70 of 72,339 girls' names by all-time recorded births (highest first) and #851 of 17,297 among girls' names in 2025. All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the 2025 SSA file. See /methodology#corpus-placement.
When was Kelly most popular?
Kelly was most popular in the 1970s decade with 133,545 total births. The single peak year was 1977.
Where is Kelly most popular?
The top states for the name Kelly are California (47,515 births), New York (36,710 births), Pennsylvania (31,061 births).
Is Kelly a unisex name?
Yes, Kelly is used for both boys and girls. As a girl's name it has 473,965 births, and as a boy's name it has 82,400 births.
How long has the name Kelly been used?
Records for Kelly go back to 1907, giving 119 years of history through 2025.
What names are similar to Kelly?
Names with a similar sound or spelling include Kelsey, Kelli, Kellie, Kelley, and 4 more. These share a common prefix and are also used for girls.

What to do with Kelly's data

  • Kelly's decade-level peak was the 1970s (133,545 total births); usage has since declined to 2,030 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
  • California records the most Kellys (47,515 births) -- see the full state breakdown if geography matters to your decision. California names

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

Keep exploring Kelly

Nearby Names Like Kelly

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

Names with a similar popularity rank to Kelly

Nationwide names with similar peak year or record span

Two nationwide peer axes for Kelly: 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, 1907–2025 (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 Kelly 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.