How many Harlos 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 Harlo are estimated to be alive in the US today.

How popular is the name Harlo in 2025?

Harlo ranks #3757 among US boy names in 2025, with 29 babies given the name.

How rare is the name Harlo?

About 1 in every 58,899 US boys born in 2025 was named Harlo — 29 in all.

Will my child share the name Harlo with classmates?

Harlo will almost certainly be the only one in school.

Harlo

Masculine

Harlo is given to both — 306 boys and 447 girls since 1880. See other names given to both

#3757 in the U.S.given to only a few children a year

rare29 boys in 2025

Harlo entered the US charts in 1916, peaked at #2326 in 1938, ranks #3757 in 2025 — given to only a few children a year.

How old is the name Harlo?

Harlo first appears in US birth records in 1916 — 109 years ago. The typical Harlo is a kid of about 10 — this name's wave is very recent. About 200 people named Harlo are estimated to be alive in the US today.

When was the name Harlo most popular?

Harlo peaked in 1938, reaching #2326 nationally. Today it ranks #3757, 1,431 places below that high. See the whole 1938 chart.

Compare this name More “H” names

Harlo appears on this list:

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: 1916
Most boys named: 202435 — the highest on record
Peak rank: #2326reached in 1938
Change vs 2024: −17.1%29 in 2025, from 35

Harlo sits in the rare tail. Its best year on record was 2024, with 35 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.

Harlo in other languages

Strongest US states over the last decade: Texas.

Harlos among us

200

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

About 1 boy in 58,899 born in 2025 was named Harlo

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

Is it right for you

What happens to a name after it peaks

The Theordore test

Every popular name lives one long story — a climb, a peak, a slow settling back. Harlo's later chapters haven't been written yet, so we borrowed them: Theordore climbed just as high around 1920, and its whole arc is on record. Line the two peaks up, and Theordore's path sketches the road Harlo is walking now.

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

Harlo, aligned on its peakTheordore· peak 1920not yet written

Harlo today is about where Theordore stood in 2007 — 87 years past a #2336-sized peak. By 2022, Theordore had settled around #11551.

Ages quietlysteadyDates fast

Harlo 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.

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

Where Harlo is headed

Harlo is on a steep climb — if the curve holds, 2030 could see around 169% more babies given the name than today. Its history is short or jumpy, though, so read this as a sketch rather than a promise.

Rising+169% by 2030projected around #2,058 in 2030

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.

Harlo beside its neighbors

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

Harlothis name29#3757Stanton29#3757Reymundo29#3757Greer29#3757Zaven29#3757

US boys given each name in 2025.

Nobody names a baby alone.
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Harlo

Masculine · #3757 in the U.S.

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Frequently asked

How many Harlos 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 Harlo are estimated to be alive in the US today.
How popular is the name Harlo in 2025?: Harlo ranks #3757 among US boy names in 2025, with 29 babies given the name.
How rare is the name Harlo?: About 1 in every 58,899 US boys born in 2025 was named Harlo — 29 in all.
Will my child share the name Harlo with classmates?: Harlo will almost certainly be the only one in school.

Ranked beside Harlo

Names sitting at a similar level of popularity right now.

Stanton^#3757 · Reymundo^#3757 · Greer^#3757 · Zaven^#3757 · Kelson^#3757 · Javin^#3757 · Faizan^#3757 · Wilfred^#3757

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

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

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