Masayuki

Boys' name

Japanese name; meaning depends on kanji

Masayuki has been given to 194 babies in the U.S. since 1915. 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 1920, with 19 recorded.

Babies named Masayuki, 1937

1 in 426,000

Masayuki over time, 1880–2025

Boys

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Masayuki: meaning, origin, and history

Japanese name; meaning depends on kanji

Japanese

What Masayuki means

Masayuki is documented with more than one possible Japanese character combination. The Latin-letter spelling records a pronunciation; it does not specify one unique kanji spelling or one universal meaning.

Possible character meanings include right, proper, happiness, good luck.

Documented naming usage and pronunciation

Masayuki is used in Japanese.

Another recorded pronunciation is /mä.sä.jɨᵝ.kʲi/ for Masayuki.

American usage and historical context

In the United States, 194 boys were recorded with the name Masayuki between 1915 and 1937. Its highest annual count was 19 in 1920; its best national rank was #1,856 in 1920.

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.

U.S. Social Security Administration: national name data and limitations

How common is Masayuki?

Masayuki 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 Masayuki 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 Masayuki. In a class of 30 the chance is Under 1%.

When Masayukis were born

Half of everyone ever recorded as Masayuki was born before 1922 — so the typical Masayuki is around 103 today.

Median birth year: 1922; About 103 years old
Biggest decade: 1920s; 55.7% 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

1920s — 55.7% of all recorded uses (108).

Is Masayuki 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 1920 (19)
Years since peak: 105; Years
Year-to-year steadiness: Volatile; 46.6% average annual change
Best rank ever: #1,856; 1920

Where Masayuki is used

Across 1910–2025, Masayuki was most concentrated in Hawaii — about 1 in 5,000 boys, against 1 in 128,564 across all states with data. It was least common in California (1 in —).

020 per 100,000

State popularity map

Most concentrated

1Hawaii1 in 5,000
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. Masayuki has too little recent state data to map, so this covers all years from 1910.

Masayuki 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: #1,856; 1920
Peak year: 1920; 19 that year
First recorded: 1915
Last recorded: 1937
All-time count: 194
Count in 2025: Under 5

Names similar to Masayuki

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

Masiyah Masaichi Maston Massai Masson Masashi Masahiro Masayoshi Master Masanori Masud Masaharu Massiah Masanobu Masih Masaki Masami Masaaki Masten Masiah Haruki Mase Massie Masani

Sibling names for Masayuki

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

Norine Vina Oleta Syble Adella Lavina Velda Alene

For a brother

Junius Dock Rupert Orin Otha Hilton Casimir Edd

Explore around Masayuki

Top names of 1920, Masayuki's peak year The 1920s in full Other names that peaked in 1920 Boys' names starting with M