Callen
BoyIrish, Scottish· “uncertain; from a surname”
- Meaning
- uncertain; from a surname (origin disputed)
- Origin
- Irish, Scottish
- Pronunciation
- KA-luhn
- Syllables
- 2
- US rank 2025
- #516
- US babies 2025
- 579
- Best rank
- #450 (2023)
- Peak year
- 2023
Meaning and origin of Callen
Callen is often said to mean “uncertain; from a surname”; the origin is uncertain, though it is usually linked to Irish and Scottish roots.
Callen is a variant of Callan, an Irish and Scottish surname of uncertain meaning. It has been linked to Gaelic words meaning "rock" or "noise", and to the given name Cathalán, related to Cathal, but these connections are not certain. As a modern first name Callen fits with other Celtic-sounding choices such as Kellan and Declan, and it has a crisp, contemporary feel. The name is easy to pronounce and spell, and Cal makes a simple nickname. Because its origin is unsettled, it is best chosen for its sound and heritage rather than a fixed meaning.
Other spellings with the same sound: Callan.
Popularity over time
Callen first appears in US Social Security records in 1954. It has ranked in the top 1,000 in 16 different years, starting in 2010. Its best national rank was #450 in 2023, the same year it reached its highest count of 687 babies. In 2025, 579 babies were named Callen, and it ranked #516 nationally. Its use has been fairly steady over the past decade.
Its national rank moved from #3,161 in 2000, #698 in 2010, and #516 in 2025. Of the 9,501 US boys named Callen since records began, 50% were born in the 2010s, its biggest decade. The 2020s come next, with 3,762 babies.
Other boys' names that peaked around the same time include Asa, Camilo, Rome, Atreus, and Cillian.
Where it is most popular (2025)
In 2025, Callen ranked highest in Wisconsin, Iowa, and Kansas.
Gender, sound and spelling
About 96% of US babies named Callen over the last 20 years were boys, with a small share of girls.
Callen is usually pronounced KA-luhn, with two syllables. It has six letters, starts with C and ends in “-en”. Names that sound the same but are spelled differently include Callan.
Middle names for Callen
A few middle names that flow with Callen: each avoids a matching first letter, a rhyme and a vowel clash where the names meet.
Sibling names for Callen
Similar names
Lists that include Callen
Frequently asked questions
What does the name Callen mean?
Callen is often said to mean “uncertain; from a surname”; the origin is uncertain, though it is usually linked to Irish and Scottish roots.
What is the origin of the name Callen?
Callen has Irish and Scottish roots. Callen is a variant of Callan, an Irish and Scottish surname of uncertain meaning.
Is Callen a popular name?
Yes. Callen ranked #516 in the US in 2025, which makes it in the top 1,000.
Is Callen a boy or girl name?
Callen is mainly a boy's name. About 96% of US babies named Callen over the last 20 years were boys, with a small share of girls.
How do you pronounce Callen?
Callen is usually pronounced KA-luhn. Stressed syllables are in capital letters.
Popularity figures come from US Social Security card applications (names given to at least five babies in a year, 1880 to 2025). How we source names and meanings