Kolsen
Masculine · “most likely "son of Col”
Kolsen belongs to the long English family of -son surnames — Colson, Coulson, Carson — turned around and used up front as a first name, with a K where a C used to be. It is two beats, the first one long and open, the second dropping away quietly, so it lands the same way Hudson and Carson do. Almost everyone who hears it can spell some version of it on the first try, even if they have never met a Kolsen.
How old is the name Kolsen?
Kolsen first appears in US birth records in 2005 — 20 years ago. The typical Kolsen is a kid of about 3 — this name's wave is very recent. About 800 people named Kolsen are estimated to be alive in the US today.
When was the name Kolsen most popular?
Kolsen peaked in 2024, reaching #1262 nationally. Today it ranks #1297, 35 places below that high. See the whole 2024 chart.
Lists built from the same records:
Where it comes from
From Nikolaos to Kolsen
The story of Kolsen
The road behind the name is well recorded even where the spelling is not. Col was how medieval English speakers shortened Nicholas, and Colson — "Col's son" — settled into an inherited surname in the same centuries that gave English Jackson, Dawson and Watson. American parents have been converting that stock of surnames into first names for generations, and more recently swapping in a K at the front, which is how Kolsen appears in the birth records: a familiar surname shape wearing a newer spelling. It arrived in this century, and so far it is carried almost entirely by young children rather than by adults.
Meaningscholars disagree
most likely "son of Col" — Col being a medieval English pet form of Nicholas
This exact spelling is recent and has no etymology of its own, so the meaning depends on which parent form you trace it to. The English surname Colson (also Coulson) is a patronymic from Col, the medieval short form of Nicholas, which itself goes back to Greek Nikolaos, "victory of the people." A second reading takes the ending as the Danish and Norwegian patronymic -sen, the same one in Jensen and Nielsen, restyled with the K that runs through Kole, Kolby and Kason. Both are serious; neither is documented for Kolsen specifically.
How the name formed
- Nikolaos
- Nicholas
- Col
- Colson
- Kolsen
Related forms: Colson · Coulson · Kolson · Nicholas
Pronouncing Kolsen
KOHL-sen
Two syllables, stress on the first, which rhymes with coal. The second syllable is unstressed and sounds like the -son in Carson, whether it is written -sen or -son.
Nicknames for Kolsen
Moderate
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 2005
- Most boys named
- 2024156 — the highest on record
- Peak rank
- #1262reached in 2024
- Change vs 2024
- −3.8%150 in 2025, from 156
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Kolsen in other languages
The same name elsewhere
- Colson in English — spelling variant
- Coulson in English — spelling variant
- Kolson in English — spelling variant
- Nicholas in English — related form
Strongest US states over the last decade: Ohio, Texas, Kentucky.
Kolsens among us
people named Kolsen are estimated to be alive in the US today
About 1 boy in 11,387 born in 2025 was named Kolsen
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Kolsen
- #1297
- Kolsen on the 2025 chart
- #427
- counting every spelling
The SSA counts spellings, not names. Kolsen went to 150 boys in 2025, but Colsen is the same name said out loud. Together the 2 spellings went to 673, which makes it the 427th most-given boys’ name of the year — 870 places above the chart.
- Colsen523
- Kolsen150
About 1 boy in 2,538 born in 2025 was given one of these spellings — against 1 in 11,387 for Kolsen itself.
Spellings are grouped by a fixed rule that folds interchangeable English spellings of one sound (ck/k, ph/f, x/ks, a non-initial y for i) and keeps vowels apart, so Sean and Shawn stay separate names. It errs towards splitting: a family here is never larger than the truth. SSA national data, 2025. Method
Is it right for you
What happens to a name after it peaks
The Amani test
Every popular name lives one long story — a climb, a peak, a slow settling back. Kolsen's later chapters haven't been written yet, so we borrowed them: Amani climbed just as high around 2008, and its whole arc is on record. Line the two peaks up, and Amani's path sketches the road Kolsen is walking now.
Kolsen is climbing fast right now. Steep climbs tend to come with steep descents — the quicker a name arrives, the more firmly it belongs to its moment.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Where Kolsen is headed
Kolsen is on a steep climb — if the curve holds, 2030 could see around 68% more babies given the name than today. Its history is short or jumpy, though, so read this as a sketch rather than a promise.
Low confidence — fitted on official counts through 2025.
A damped-trend projection of the official birth data — a sketch of momentum, not a promise. Every name's forecast, ranked.
Kolsen beside its neighbors
The names ranked closest to Kolsen in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- Reads correctly on sight for almost any English speaker, because the -son surname pattern is already everywhere.
- Has a ready short form in Kol, which also works as a standalone name.
- Sits in the same rhythm as Carson, Hudson and Jackson, so it pairs easily with most surnames.
- Traces back, through Colson, to a naming line documented in England since the Middle Ages.
- It will be spelled Colson or Coulson by default. Expect to say "K, and -sen at the end" for life — manageable, but constant.
- The name is new enough that there are no adult bearers to anchor it; most people will meet it first as a small child's name, or assume it is a surname.
- It is heard mainly in a few states rather than evenly across the country, so how familiar it sounds will depend a good deal on where a family lives.
- Kolsen, Colson, Kolson and Cole all live close together in sound, so mix-ups with cousins and classmates are worth expecting.
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Kolsen
Masculine · #1297 in the U.S.
Frequently asked
- How many Kolsens are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 800 people named Kolsen are estimated to be alive in the US today.
- How do you spell Kolsen?
- Kolsen is one of 2 recorded spellings. Colsen is the more common one — 523 births in 2025 against 150 for Kolsen.
- How popular is the name Kolsen in 2025?
- Kolsen ranks #1297 among US boy names in 2025, with 150 babies given the name.
- How rare is the name Kolsen?
- About 1 in every 11,387 US boys born in 2025 was named Kolsen — 150 in all.
- Will my child share the name Kolsen with classmates?
- Kolsen will almost certainly be the only one in school.
Ranked beside Kolsen
Names sitting at a similar level of popularity right now.
Kallen#1297 · Cormac#1297 · Knowledge#1297 · Kaizer#1297 · Cartier#1297 · Faris#1297 · Harris#1297 · Achilles#1290
Looking for what else is popular rather than what resembles Kolsen? See the current top 100.
Choosing between Kolsen and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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