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Hatsuko

Girls' name

From Japanese はつこ; literal meaning unconfirmed

Hatsuko has been given to 204 babies in the U.S. since 1911. 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 1918, with 23 recorded.

Babies named Hatsuko, 1932

1 in 352,000

Hatsuko over time, 1880–2025

Girls
010203018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Hatsuko: meaning, origin, and history

From Japanese はつこ; literal meaning unconfirmed

Japanese

What Hatsuko means

Hatsuko is a given name.

Origin, language, and formation

Hatsuko is used in English and Tagalog. Its origins include Japanese.

Hatsuko comes through Japanese はつこ.

Pronunciation and spelling

In Tagalog, Hatsuko is pronounced /haˈt͡suko/.

American usage and historical context

In the United States, 204 girls were recorded with the name Hatsuko between 1911 and 1932. Its highest annual count was 23 in 1918; its best national rank was #1,710 in 1911.

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 Hatsuko?

Hatsuko had fewer than 5 recorded uses in 2025, so these figures use 1932, the last year it was published.

Among all babies, 1932
1 in 352,000
6 of 2,111,250 births
Among girls only
1 in 178,000
<0.01% of girls
Rank, 1932
Unranked
Fewer than 5 uses
Coin-flip room size
243,902 kids
Even odds of a second one

Where Hatsuko sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 1932 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 243,902 children born in 1932 and it's an even bet that one of them is another Hatsuko. In a class of 30 the chance is Under 1%.

When Hatsukos were born

Half of everyone ever recorded as Hatsuko was born before 1919 — so the typical Hatsuko is around 106 today.

Median birth year
1919
About 106 years old
Biggest decade
1910s
51.0% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
0
People you could plausibly meet
Choose a decade

1910s — 51.0% of all recorded uses (104).

Is Hatsuko 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 1918 (23)
Years since peak
107
Years
Year-to-year steadiness
Volatile
45.2% average annual change
Best rank ever
#1,710
1911

Spellings of Hatsuko

Hatsuko is not the most common spelling — Haruko is, with 46.9% against Hatsuko's 14.1%.

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 Hatsuko is used

Across 1910–2025, Hatsuko was most concentrated in Hawaii — about 1 in 3,226 girls, against 1 in 107,677 across all states with data. It was least common in California (1 in —).

031 per 100,000

Most concentrated

  1. 1Hawaii1 in 3,226
  2. 2California1 in —

Shading is the share of that state's recorded girls 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. Hatsuko has too little recent state data to map, so this covers all years from 1910.

Hatsuko by the numbers

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

As a girl's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#1,710
1911
Peak year
1918
23 that year
First recorded
1911
Last recorded
1932
All-time count
204
Count in 2025
Under 5

Names similar to Hatsuko

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

HatleyHatsueHattiHatsumiHattyeNezukoTsurukoChizukoHatsuyoNatsukoSetsukoHaticeHathawayHatsuyeMatsukoMitsukoShizukoYasukoHattenNobukoHattiemaeTsuyukoKazukoKatsuko

Sibling names for Hatsuko

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 Hatsuko

Top names of 1918, Hatsuko's peak yearThe 1910s in fullOther names that peaked in 1911Girls' names starting with H