Mutsuko

Girls' name

Literal meaning not recorded; Japanese origin

Mutsuko has been given to 18 babies in the U.S. since 1923. 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 1932, with 7 recorded.

Babies named Mutsuko, 1938

1 in 443,000

Mutsuko over time, 1880–2025

Girls

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Mutsuko: meaning, origin, and history

Literal meaning not recorded; Japanese origin

Japanese

What Mutsuko means

Mutsuko is a given name.

Origin, language, and formation

Mutsuko is used in English. Its origins include Japanese.

American usage and historical context

In the United States, 18 girls were recorded with the name Mutsuko between 1923 and 1938. Its highest annual count was 7 in 1932; its best national rank was #3,810 in 1932.

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 Mutsuko?

Mutsuko had fewer than 5 recorded uses in 2025, so these figures use 1938, the last year it was published.

Among all babies, 1938: 1 in 443,000; 5 of 2,212,569 births
Among girls only: 1 in 221,000; <0.01% of girls
Rank, 1938: Unranked; Fewer than 5 uses
Coin-flip room size: 306,728 kids; Even odds of a second one

Where Mutsuko 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 1938 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 306,728 children born in 1938 and it's an even bet that one of them is another Mutsuko. In a class of 30 the chance is Under 1%.

When Mutsukos were born

Half of everyone ever recorded as Mutsuko was born before 1932 — so the typical Mutsuko is around 93 today.

Median birth year: 1932; About 93 years old
Biggest decade: 1930s; 66.7% 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

1930s — 66.7% of all recorded uses (12).

Is Mutsuko 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 1932 (7)
Years since peak: 93; Years
Year-to-year steadiness: Not enough data; Too few years
Best rank ever: #3,810; 1932

Spellings of Mutsuko

Mutsuko is not the most common spelling — Mitsuko is, with 96.9% against Mutsuko's 3.1%.

Mitsuko96.9%565
Mutsuko3.1%18

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.

Mutsuko 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: #3,810; 1932
Peak year: 1932; 7 that year
First recorded: 1923
Last recorded: 1938
All-time count: 18
Count in 2025: Under 5

Names similar to Mutsuko

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

Tatsuko Tazuko Masuko Atsuko Katsuko Tsuyuko Suzuko Ritsuko Kikuko Mayuko Satsuko Nezuko Kinuko Itsuko Matsuko Ikuko Etsuko Natsuko Chizuko Tsuruko Hatsuko Setsuko Mitsuko Shizuko

Sibling names for Mutsuko

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

For a sister

Louella Billy Donald Ardith Roma Bobby Shirlee Joe

For a brother

Delano Talmadge Gaylord Franklyn Boyce Carrol Dudley Arlen

Explore around Mutsuko

Top names of 1932, Mutsuko's peak year The 1930s in full Other names that peaked in 1932 Girls' names starting with M