Baby Names US
Unisex name ★ peaked 2025

Callahan

Gender Unisex · 14% girls Rank 2025 #227 Trend ↑ Rising 344%

From Irish Ó Ceallacháin, from Ceallachán, diminutive of the given name Ceallach.

Rank 2025
#227
among boys · ↑137 vs 2024
Babies in 2025
1,682
named Callahan · +69% vs 2024
How common
1 in 1,091
boys born in 2025
Peak year
2025
1,682 babies
All-time total
7,031
#1,584 all-time among boys
First recorded
1983
in Social Security records

Callahan popularity over time

7,031 babies have been named Callahan since 1983, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.250.50.75118801900192019401960198020002020BoysGirls
BoysGirls

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Girls Boys Total Per year Change Best rank
1880s – – – – – –
1890s – – – – – –
1900s – – – – – –
1910s – – – – – –
1920s – – – – – –
1930s – – – – – –
1940s – – – – – –
1950s – – – – – –
1960s – – – – – –
1970s – – – – – –
1980s 12 52 64 6 – #3,216
1990s 115 154 269 27 +320% #2,804
2000s 166 347 513 51 +91% #2,579
2010s 273 1,069 1,342 134 +162% #899
2020s (to 2025) 435 4,408 4,843 807 +501% #227

Where Callahan is heading

A five-year projection from the recent trend in births per 1,000 boys (damped so it flattens over time), converted to babies at today's birth totals. The implied rank places that projection in the 2025 field. A projection, not a promise: real trends bend.

Year Projected babies Per 1,000 boys Implied rank
2026 2,006 1.17 #182
2027 2,476 1.45 #144
2028 2,962 1.73 #121
2029 3,448 2.02 #103
2030 3,924 2.30 #83

Where Callahan is most popular

Boys named Callahan per 1,000 boys born in each state, 2021–2025. National average: 0.477 per 1,000. Strongest in Montana, North Dakota, and Idaho.

Vs national average
well below below near national above well above no data

All 50 states and DC, sorted by rate. Counts are boys named Callahan born 2021–2025; the per-1,000 rate makes states of different sizes comparable, and the last column shows each state against the national average.

State Boys 2021–2025 Per 1,000 vs national
Montana 39 2.21 +364%
North Dakota 37 2.17 +354%
Idaho 58 1.42 +197%
Minnesota 171 1.39 +192%
Wisconsin 160 1.35 +183%
South Dakota 24 1.29 +170%
Iowa 85 1.23 +158%
New Hampshire 27 1.22 +155%
Kansas 81 1.18 +148%
Missouri 163 1.18 +147%
Utah 96 1.01 +111%
Oregon 75 0.988 +107%
Indiana 151 0.942 +97%
Oklahoma 82 0.927 +94%
Michigan 179 0.874 +83%
Nebraska 36 0.828 +74%
Colorado 106 0.821 +72%
Ohio 216 0.815 +71%
Arkansas 49 0.774 +62%
Washington 122 0.746 +56%
Maine 14 0.722 +51%
Tennessee 128 0.709 +49%
South Carolina 66 0.639 +34%
North Carolina 141 0.552 +16%
Illinois 140 0.548 +15%
Alabama 55 0.503 +5%
Kentucky 49 0.488 ≈ national
Arizona 74 0.452 -5%
Massachusetts 62 0.451 -5%
Virginia 80 0.422 -12%
Pennsylvania 108 0.407 -15%
Georgia 96 0.379 -21%
Texas 329 0.373 -22%
Florida 168 0.355 -26%
Maryland 40 0.335 -30%
Nevada 18 0.316 -34%
Rhode Island 5 0.307 -36%
New York 127 0.293 -39%
New Jersey 54 0.268 -44%
California 216 0.236 -50%
Louisiana 23 0.225 -53%
Connecticut 14 0.207 -57%
West Virginia 5 0.153 -68%
Alaska – – –
District of Columbia – – –
Delaware – – –
Hawaii – – –
Mississippi – – –
New Mexico – – –
Vermont – – –
Wyoming – – –

State counts come from the Social Security Administration's state files, which omit any state-year with fewer than five babies of a name, so small states can undercount slightly.

The story of Callahan

Callahan is moderately common for boys in the United States, ranked #227 in 2025 with 1,566 babies given the name. It is currently rising compared with a decade ago.

Since 1983, 7,031 American babies have been named Callahan, about 86% boys and 14% girls, making it a genuinely unisex name. Its peak came in 2025, when 1,682 newborns received the name, the signature sound of the 2020s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Callahan stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Callahan?

The median living Callahan is about 3 years old; half are between 1 and 7. An estimated 7,000 people named Callahan are alive in the United States today.

median 3 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Callahan year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Girls Girls rank Boys Boys rank
2025 116 #1,748 1,566 #227
2024 85 #2,220 908 #364
2023 67 #2,624 665 #461
2022 75 #2,428 571 #519
2021 51 #3,168 410 #660
2020 41 #3,628 288 #806
2019 50 #3,182 244 #899
2018 35 #4,090 200 #1,026
2017 32 #4,412 166 #1,142
2016 27 #5,021 115 #1,484
2015 27 #5,011 83 #1,806
2014 21 #6,027 77 #1,889
2013 22 #5,855 57 #2,254
2012 24 #5,584 47 #2,600
2011 19 #6,611 37 #3,056
2010 16 #7,596 43 #2,795
2009 20 #6,609 42 #2,852
2008 20 #6,604 41 #2,886
2007 13 #9,118 28 #3,701
2006 17 #7,209 35 #3,097
2005 10 #10,261 35 #2,966
2004 23 #5,405 41 #2,606
2003 12 #8,613 29 #3,205
2002 16 #6,756 27 #3,274
2001 18 #6,117 33 #2,813
2000 17 #6,257 36 #2,579
1995 10 #8,176 11 #5,172
1990 – – 6 #7,301
1985 – – 5 #6,660
1980 – – – –
1975 – – – –
1970 – – – –
1965 – – – –
1960 – – – –
1955 – – – –
1950 – – – –
1945 – – – –
1940 – – – –
1935 – – – –
1930 – – – –
1925 – – – –
1920 – – – –
1915 – – – –
1910 – – – –
1905 – – – –
1900 – – – –
1895 – – – –
1890 – – – –
1885 – – – –
1880 – – – –

Frequently asked questions

Quick answers about Callahan, drawn from the same Social Security data as the charts above.

How old is the average Callahan?

The median living Callahan is about 3 years old. Half of all living Callahans are between 1 and 7 years old.

How many people named Callahan are alive today?

An estimated 7,000 people named Callahan are alive in the United States, based on 7,031 recorded births and Social Security life tables.

What does the name Callahan mean?

From Irish Ó Ceallacháin, from Ceallachán, diminutive of the given name Ceallach.

How popular is the name Callahan in 2025?

Callahan ranked #227 among boys' names in the United States in 2025, with 1,566 babies given the name, according to Social Security Administration data.

How many people are named Callahan?

7,031 babies have been named Callahan in the United States since 1983, based on Social Security card applications.

When was the name Callahan most popular?

Callahan peaked in 2025, when 1,682 newborns received the name.

Is Callahan a boy or girl name?

Callahan is used for both: about 14% of babies named Callahan have been girls and 86% boys.

Is the name Callahan rising or falling?

Callahan is on the rise, noticeably more popular now than a decade ago.

Will Callahan become more popular?

Callahan is trending upward. If the recent trend holds, we project roughly 3,924 boys named Callahan in 2030, which would rank around #83. Forecasts assume the current trend continues and become less certain further out.

Names like Callahan

Names that sound and feel close to Callahan: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Callahan with similar names → More names starting with C →