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Tsutomu

Boys' name

Strive, endeavour

Tsutomu has been given to 352 babies in the U.S. since 1912. 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 1924, with 31 recorded.

Babies named Tsutomu, 1937

1 in 426,000

Tsutomu over time, 1880–2025

Boys
01020304018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Tsutomu: meaning, origin, and history

Strive, endeavour

Deeper origin not confirmed in the cited records

What Tsutomu means

Tsutomu means “strive, endeavour”.

Documented naming usage and pronunciation

Tsutomu is used in Japanese.

Another recorded pronunciation is /t͡sɨᵝ.to̞.mɯᵝ/ for Tsutomu.

American usage and historical context

In the United States, 352 boys were recorded with the name Tsutomu between 1912 and 1937. Its highest annual count was 31 in 1924; its best national rank was #1,354 in 1924.

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.

How common is Tsutomu?

Tsutomu had fewer than 5 recorded uses in 2025, so these figures use 1937, the last year it was published.

Among all babies, 1937
1 in 426,000
5 of 2,130,660 births
Among boys only
1 in 213,000
<0.01% of boys
Rank, 1937
Unranked
Fewer than 5 uses
Coin-flip room size
295,373 kids
Even odds of a second one

Where Tsutomu 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 1937 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 295,373 children born in 1937 and it's an even bet that one of them is another Tsutomu. In a class of 30 the chance is Under 1%.

When Tsutomus were born

Half of everyone ever recorded as Tsutomu was born before 1924 — so the typical Tsutomu is around 101 today.

Median birth year
1924
About 101 years old
Biggest decade
1920s
62.2% of all use
Born in the last 25 years
98.3%
A modern name
Recorded since 1950
0
People you could plausibly meet
Choose a decade

1920s — 62.2% of all recorded uses (219).

Is Tsutomu 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 1924 (31)
Years since peak
101
Years
Year-to-year steadiness
Shifting
22.3% average annual change
Best rank ever
#1,354
1924

Where Tsutomu is used

Across 1910–2025, Tsutomu was most concentrated in Hawaii — about 1 in 3,226 boys, against 1 in 68,962 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 boys 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. Tsutomu has too little recent state data to map, so this covers all years from 1910.

Tsutomu 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
#1,354
1924
Peak year
1924
31 that year
First recorded
1912
Last recorded
1937
All-time count
352
Count in 2025
Under 5

Names similar to Tsutomu

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

TsugioTsuneoTsubasaTsukasaTsuyoshiHiromu

Sibling names for Tsutomu

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 Tsutomu

Top names of 1924, Tsutomu's peak yearThe 1920s in fullOther names that peaked in 1924Boys' names starting with T