How many Lewins are there in the world?

No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 200 people named Lewin are estimated to be alive in the US today.

How do you spell Lewin?

Lewin is one of 2 recorded spellings. Llewyn is the more common one — 25 births in 2025 against 17 for Lewin.

How popular is the name Lewin in 2025?

Lewin ranks #5399 among US boy names in 2025, with 17 babies given the name.

How rare is the name Lewin?

About 1 in every 100,475 US boys born in 2025 was named Lewin — 17 in all.

Will my child share the name Lewin with classmates?

Lewin will almost certainly be the only one in school.

Lewin

Masculine

#5399 in the U.S.given to only a few children a year

rare17 boys in 2025

Lewin entered the US charts in 1915, peaked at #2602 in 1920, ranks #5399 in 2025 — given to only a few children a year.

How old is the name Lewin?

Lewin first appears in US birth records in 1915 — 110 years ago. The typical Lewin is a kid of about 11 — this name's wave is very recent. About 200 people named Lewin are estimated to be alive in the US today.

When was the name Lewin most popular?

Lewin peaked in 1920, reaching #2602 nationally. Today it ranks #5399, 2,797 places below that high. See the whole 1920 chart.

Compare this name More “L” names

Lists built from the same records:

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: 1915
Most boys named: 202318 — the highest on record
Peak rank: #2602reached in 1920
Change vs 2024: −5.6%17 in 2025, from 18

Lewin sits in the rare tail. Its best year on record was 2023, with 18 boys. Today it is given to few enough children that it does not enter the ranked charts at all.

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.

Lewins among us

200

people named Lewin are estimated to be alive in the US today

About 1 boy in 100,475 born in 2025 was named Lewin

Estimated from SSA birth records and published actuarial life tables. Method

Spellings of Lewin

#5399
Lewin on the 2025 chart: #886
counting every spelling

The SSA counts spellings, not names. Lewin went to 17 boys in 2025, but Llewyn is the same name said out loud. Together the 2 spellings went to 42, which makes it the 886th most-given boys’ name of the year — 4,513 places above the chart.

Llewyn25
Lewin17

About 1 boy in 40,668 born in 2025 was given one of these spellings — against 1 in 100,475 for Lewin 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

Fashion outlook

Lewin sits in the calm middle of the cycle — neither chasing a wave nor sliding off one. Middle-of-the-cycle names age slowly and predictably.

40%chance Lewin will feel “very 2020s” by 2040

Ages quietlysteadyDates fast

A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored

Lewin beside its neighbors

The names ranked closest to Lewin in 2025, in babies rather than position — the bars are to scale.

Lewinthis name17#5399Frazier17#5399Franz17#5399Demetrio17#5399Rolan17#5399

US boys given each name in 2025.

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Lewin

Masculine · #5399 in the U.S.

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Frequently asked

How many Lewins are there in the world?: No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 200 people named Lewin are estimated to be alive in the US today.
How do you spell Lewin?: Lewin is one of 2 recorded spellings. Llewyn is the more common one — 25 births in 2025 against 17 for Lewin.
How popular is the name Lewin in 2025?: Lewin ranks #5399 among US boy names in 2025, with 17 babies given the name.
How rare is the name Lewin?: About 1 in every 100,475 US boys born in 2025 was named Lewin — 17 in all.
Will my child share the name Lewin with classmates?: Lewin will almost certainly be the only one in school.

Ranked beside Lewin

Names sitting at a similar level of popularity right now.

Frazier^#5399 · Franz^#5399 · Demetrio^#5399 · Rolan^#5399 · Rayvon^#5399 · Riddick^#5399 · Laramie^#5399 · Soloman^#5399

Looking for what else is popular rather than what resembles Lewin? See the current top 100.

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US figures from the Social Security Administration. 1880–2025. Data & methodology

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