Yoichi

Boys' name

From Japanese よういち; literal meaning unconfirmed

Yoichi has been given to 18 babies in the U.S. since 1920. 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 1922, with 7 recorded.

Babies named Yoichi, 1927

1 in 464,000

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Yoichi: meaning, origin, and history

From Japanese よういち; literal meaning unconfirmed

Japanese

What Yoichi means

Yoichi is a given name.

Origin, language, and formation

Yoichi is used in English. Its origins include Japanese.

Yoichi comes through Japanese よういち.

American usage and historical context

In the United States, 18 boys were recorded with the name Yoichi between 1920 and 1927. Its highest annual count was 7 in 1922; its best national rank was #3,867 in 1922.

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 Yoichi?

Yoichi had fewer than 5 recorded uses in 2025, so these figures use 1927, the last year it was published.

Among all babies, 1927: 1 in 464,000; 5 of 2,319,281 births
Among boys only: 1 in 225,000; <0.01% of boys
Rank, 1927: Unranked; Fewer than 5 uses
Coin-flip room size: 321,522 kids; Even odds of a second one

Where Yoichi 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 1927 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 321,522 children born in 1927 and it's an even bet that one of them is another Yoichi. In a class of 30 the chance is Under 1%.

When Yoichis were born

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

Median birth year: 1922; About 103 years old
Biggest decade: 1920s; 100.0% 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

1920s — 100.0% of all recorded uses (18).

Is Yoichi 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 1922 (7)
Years since peak: 103; Years
Year-to-year steadiness: Not enough data; Too few years
Best rank ever: #3,867; 1922

Yoichi 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: #3,867; 1922
Peak year: 1922; 7 that year
First recorded: 1920
Last recorded: 1927
All-time count: 18
Count in 2025: Under 5

Names similar to Yoichi

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

Yoisel Kiichi Itachi Melchi Tobechi Munachi Eiichi Amechi Soichi Tenchi Chachi Ikechi Tochi Richi Akachi Shuichi Ryuichi Zachi Saichi Kenechi Seiichi Eichi Michi Nobuichi

Sibling names for Yoichi

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

Albertha Bethel Verla Lorine Elvera Rubie Tressie Filomena

For a brother

Trinidad Hobert Harland Walton Elden Cletus Elroy Columbus

Explore around Yoichi

Top names of 1922, Yoichi's peak year The 1920s in full Other names that peaked in 1922 Boys' names starting with Y