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Isak

#3,153 in 2025Boys' name

Form of Isaac

Isak has been given to 1,107 babies in the U.S. since 1979. In 2025 it ranked #3,153 of 13,926 boys’ names in use. Its peak year was 2004, with 57 recorded.

Babies named Isak, 2025

1 in 87,200

Isak over time, 1880–2025

Boys
020406018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Isak: meaning, origin, and history

Form of Isaac

Deeper origin not confirmed in the cited records

What Isak means

Isak is a form of Isaac.

Meaning behind the documented name family

The name developed through Isak → Isaac. The family’s proposed meaning is “he laughs, he will laugh”, recorded in English with the source elements Yiṣḥāq.

Origin, language, and formation

Isak is used in Danish, Ewe, Norwegian and Swedish.

Related names and everyday forms

Related names include Isaac.

American usage and historical context

In the United States, 1,107 boys were recorded with the name Isak between 1979 and 2025. Its highest annual count was 57 in 2004; its best national rank was #2,080 in 2004.

Over 5 years its rank rose, from #4,191 in 2020 to #3,153 in 2025. Over 10 years its rank rose, from #3,316 in 2015 to #3,153 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Isak?

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

Among all babies, 2025
1 in 87,200
38 of 3,315,165 births
Among boys only
1 in 44,900
<0.01% of boys
Rank, 2025
#3,153
of 13,926 boys’ names in use
Coin-flip room size
60,472 kids
Even odds of a second one

Where Isak 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 500Under 1%

Put another way: gather 60,472 children born in 2025 and it's an even bet that one of them is another Isak. In a class of 30 the chance is Under 1%.

When Isaks were born

Half of everyone ever recorded as Isak was born before 2007 — so the typical Isak is around 18 today.

Median birth year
2007
About 18 years old
Biggest decade
2000s
39.1% of all use
Born in the last 25 years
77.4%
A modern name
Recorded since 1950
1,107
People you could plausibly meet
Choose a decade

2000s — 39.1% of all recorded uses (433).

Is Isak 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
+967
Places climbed
Rank vs 5 years ago
+1,038
Places climbed
Rank vs 10 years ago
+163
Places climbed
Births vs 10 years ago
1.12×
More babies than then
Share of its own peak
66.7%
Peak was 2004 (57)
Years since peak
21
Years
Year-to-year steadiness
Volatile
30.1% average annual change
Best rank ever
#2,080
2004

Spellings of Isak

Isak is not the most common spelling — Isaac is, with 31.0% against Isak's 0.10%.

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 Isak is used

Across 1910–2025, Isak was most concentrated in Minnesota — about 1 in 100,000 boys, against 1 in 231,055 across all states with data. It was least common in Texas (1 in —).

01 per 100,000

Most concentrated

  1. 1Minnesota1 in 100,000
  2. 2Washington1 in 100,000
  3. 3California1 in —
  4. 4Indiana1 in —
  5. 5Texas1 in —

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. Isak has too little recent state data to map, so this covers all years from 1910.

Isak around the world

Where Isak 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.

  • England & Wales
    1998–2025
    #1,307
    in 2025
  • France
    1997–2025
    #963
    in 2025
  • Norway
    1880–2025
    #6
    in 2025
  • Canada
    1995–2024
    #3,231
    in 2024
  • South Australia
    1996–2011
    #784
    in 2011

Popularity data from Office for National Statistics, Institut national de la statistique et des études économiques, Statistics Norway, Statistics Canada and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. INSEE data under Licence Ouverte / Etalab 2.0. SSB, CBS SA data under CC BY 4.0. StatCan data under Statistics Canada Open Licence.

Isak by the numbers

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

As a boy's name

Rank in 2025
#3,153
Trend vs 5 yrs ago
Up 1,038
Best rank ever
#2,080
2004
Peak year
2004
57 that year
First recorded
1979
Last recorded
2025
All-time count
1,107
Count in 2025
38

Names similar to Isak

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

IsaihIsacIsamIsaccIsaiaIsaIsaelIsayahIsaiIsaihaIsaakIsaisIsahiIsauroIsamuIsanIsaoIssakIsaahIsairIsabelIsaackIsaicIsack

Sibling names for Isak

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 Isak

Top names of 2004, Isak's peak yearThe 2000s in fullOther names that peaked in 2004Boys' names starting with IIcelandic Boy NamesSwedish Boy Names