Kolsen

#1,304 in 2025Boys' name

Meaning not yet documented

Kolsen has been given to 813 babies in the U.S. since 2005. In 2025 it ranked #1,304 of 13,926 boys’ names in use. Its peak year was 2024, with 156 recorded.

Babies named Kolsen, 2025

1 in 22,100

Kolsen over time, 1880–2025

Boys
05010015020018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

How common is Kolsen?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 22,100
150 of 3,315,165 births
Among boys only
1 in 11,400
<0.01% of boys
Rank, 2025
#1,304
of 13,926 boys’ names in use
Coin-flip room size
15,320 kids
Even odds of a second one

Where Kolsen sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 5002%

Put another way: gather 15,320 children born in 2025 and it's an even bet that one of them is another Kolsen. In a class of 30 the chance is Under 1%.

When Kolsens were born

Half of everyone ever recorded as Kolsen was born before 2022 — so the typical Kolsen is around 3 today.

Median birth year
2022
About 3 years old
Biggest decade
2020s
67.0% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
813
People you could plausibly meet
Choose a decade

2020s — 67.0% of all recorded uses (545).

Is Kolsen rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
−38
Places dropped
Rank vs 5 years ago
+948
Places climbed
Rank vs 10 years ago
+2,529
Places climbed
Births vs 10 years ago
5.36×
More babies than then
Share of its own peak
96.2%
Peak was 2024 (156)
Years since peak
1
Years
Year-to-year steadiness
Volatile
42.2% average annual change
Best rank ever
#1,266
2024

Spellings of Kolsen

Kolsen is not the most common spelling — Holden is, with 16.1% against Kolsen's 0.40%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Kolsen is used

Across 2016–2025, Kolsen was most concentrated in Kentucky — about 1 in 10,000 boys, against 1 in 33,027 across all states with data. It was least common in Texas (1 in 100,000).

110 per 100,000

Most concentrated

  1. 1Kentucky1 in 10,000
  2. 2Ohio1 in 10,000
  3. 3Alabama1 in 16,667
  4. 4Louisiana1 in 16,667
  5. 5Nebraska1 in 16,667
  6. 6Indiana1 in 20,000
  7. 7Missouri1 in 20,000
  8. 8Arkansas1 in 25,000

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.

Kolsen around the world

Where Kolsen ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • Canada
    2020–2024
    #1,964
    in 2024

Popularity data from Statistics Canada. StatCan data under Statistics Canada Open Licence.

Kolsen by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#1,304
Trend vs 5 yrs ago
Up 948
Best rank ever
#1,266
2024
Peak year
2024
156 that year
First recorded
2005
Last recorded
2025
All-time count
813
Count in 2025
150

Names similar to Kolsen

Matched on shared beginnings and endings, similar length, and comparable popularity.

Sibling names for Kolsen

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Kolsen