Callahan

Callahan - A very unique male name

Callahan appeared on the charts for the first time in 2000 on position #3406. In this article you'll learn the history of this name, statistics, see famous people named Callahan and more.
Are you having a baby or looking to learn more about the name Callahan? Our experts and editorial staff have gathered trends and insights for 30,000+ baby names over the last 100 years -- And on this page you will learn everything you ever wanted to know about the name Callahan. The baby boy name Callahan was given to 1,539 baby boys in 2025, ranking #227 on the national boy baby name top chart.


With that position 1 in 953 baby boys were given this name - making this a very unique male name according to our Popularity Score algorithm. Callahan peaked in popularity 1 years ago in 2025 on position 227.

Famous with this name

How would you rate Callahan, 1-5?

Callahan is currently topping the charts in...

Did you know that popularity can vary a lot between states? Callahan is currently topping the baby name charts in Montana at position #79 - and is the least popular in California at position #467.

Why care about state specific baby name charts? It could be that a name that is very popular on the national overall charts is less (or even more) popular where you live. So make sure you check out the state specific charts below and find out how popular or unique Callahan is where you live.

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Callahan origin and meaning

Irish surname, from Ó Ceallacháin — root meaning disputed

Uncertain — the personal name Ceallach behind the surname is variously explained as "strife" or connected with cill, "church"

Callahan is an Irish clan surname that barely existed as an American first name before 2000. It has rocketed from #807 in 2020 to #227 in 2025, one of the fastest risers in this set, riding the surname-name wave and offering the nickname Cal.

Origin uncertain

Callahan is a 8 letter name with 3 syllables.

To see famous people named Callahan, pop culture references for the name Callahan and nicknames & variations - visit Nameberry or Wikipedia.

Similar to Callahan

We've found the following names that sound similar to Callahan, sorted by popularity.

Colin / Collin / Callum / Cullen / Coleman / Callan / Callen / Cillian / Calum / Clem /

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Name statistics

Most parents-to-be know if they want a popular or unique name, and with these charts and data tables you can easily get a better understanding of how popular or unique this name is.

With a quick glance you can easily tell if this name is increasing or declining in popularity - But note that its current popularity can actually differ a lot from state to state.

Chart position per year (visualized)

Chart position per state (visualized)

Chart position per year (table view)

Chart position per state (table view)

Even more about Callahan

These are some of the common questions you may want to have answered to know if this is the perfect name for your baby.

Is Callahan a common or unique name?

By analyzing the number of births and frequency of this name we've determined that it's currently a very unique male name.

What is the number of syllables for the name Callahan?

3 syllables. Why is this important? One of the things that makes a baby name sound good and have a nice rythm is the number of syllables - and especially the number of syllables along with the syllable count for your last name. A simple rule is to avoid having the same number of syllables in your first, middle and last name.

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Pronunciation

KAL-uh-han · /ˈkæləhæn/

Around the world

No traditional forms in other languages — this name was created in America in our own time.

Spellings and nicknames

Nicknames: Cal

Famous bearers

None yet — the name first appears in the data in 2000, and its oldest bearers are still young.

Style

Surname

Why parents choose it

Parents choose Callahan for its rollicking Irish energy — substantial, friendly, and still rare enough to feel like a discovery, with Cal in reserve.

Worth knowing

• Its rise is very recent (first in the data in 2000), so it has fashion-name momentum that could date.
• Three syllables with no settled nickname culture; Cal is the obvious one but not automatic.