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Hilo

Boys' name

Literal meaning not recorded; Hawaiian origin

Hilo has been given to 16 babies in the U.S. since 2016. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 2018, with 6 recorded.

Babies named Hilo, 2019

1 in 694,000

Hilo over time, 1880–2025

Boys
024618801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Hilo: meaning, origin, and history

Literal meaning not recorded; Hawaiian origin

Hawaiian

What Hilo means

Hilo is a given name.

Origin, language, and formation

Hilo is used in Hawaiian. Its origins include Hawaiian.

Pronunciation and spelling

In Hawaiian, Hilo is pronounced /ˈhi.lo/.

American usage and historical context

In the United States, 16 boys were recorded with the name Hilo between 2016 and 2019. Its highest annual count was 6 in 2018; its best national rank was #11,293 in 2018.

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 Hilo?

Hilo had fewer than 5 recorded uses in 2025, so these figures use 2019, the last year it was published.

Among all babies, 2019
1 in 694,000
5 of 3,472,229 births
Among boys only
1 in 359,000
<0.01% of boys
Rank, 2019
Unranked
Fewer than 5 uses
Coin-flip room size
481,354 kids
Even odds of a second one

Where Hilo 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 2019 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 481,354 children born in 2019 and it's an even bet that one of them is another Hilo. In a class of 30 the chance is Under 1%.

When Hilos were born

Half of everyone ever recorded as Hilo was born before 2018 — so the typical Hilo is around 7 today.

Median birth year
2018
About 7 years old
Biggest decade
2010s
100.0% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
16
People you could plausibly meet
Choose a decade

2010s — 100.0% of all recorded uses (16).

Is Hilo 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
—
Not ranked then
Rank vs 5 years ago
New entry
Not ranked then
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
0%
Peak was 2018 (6)
Years since peak
7
Years
Year-to-year steadiness
Shifting
16.7% average annual change
Best rank ever
#11,293
2018

Spellings of Hilo

Hilo is not the most common spelling — Bill is, with 30.9% against Hilo's <0.01%.

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.

Hilo around the world

Where Hilo 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.

  • France
    2018–2018
    #4,930
    in 2018

Popularity data from Institut national de la statistique et des études économiques. INSEE data under Licence Ouverte / Etalab 2.0.

Hilo by the numbers

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

As a boy's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#11,293
2018
Peak year
2018
6 that year
First recorded
2016
Last recorded
2019
All-time count
16
Count in 2025
Under 5

Names similar to Hilo

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

XiloZiloCailoHilalSiloRiloHillieKhiloKhailoHilryHillipKiloHildonHilmonZoiloMailoIloHilkiahHillAiloEiloLiloHilreyHilder

Sibling names for Hilo

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 Hilo

Top names of 2018, Hilo's peak yearThe 2010s in fullOther names that peaked in 2018Boys' names starting with H