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Eiko

Girls' name

Japanese name; meaning depends on kanji

Eiko has been given to 195 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 1921, with 18 recorded.

Babies named Eiko, 2018

1 in 502,000

Eiko over time, 1880–2025

Girls
0510152018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Eiko: meaning, origin, and history

Japanese name; meaning depends on kanji

Japanese

What Eiko means

Eiko 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 glory, honour, flourish, prosper, excellent, fine, child.

Documented naming usage and pronunciation

Eiko is used in Japanese.

Another recorded pronunciation is /e̞ː.ko̞/ for Eiko.

Origin, language, and formation

Eiko is used in English. Its origins include Japanese.

American usage and historical context

In the United States, 195 girls were recorded with the name Eiko between 1915 and 2018. Its highest annual count was 18 in 1921; its best national rank was #2,145 in 1921.

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 Eiko?

Eiko had fewer than 5 recorded uses in 2025, so these figures use 2018, the last year it was published.

Among all babies, 2018
1 in 502,000
7 of 3,516,853 births
Among girls only
1 in 243,000
<0.01% of girls
Rank, 2018
Unranked
Fewer than 5 uses
Coin-flip room size
348,244 kids
Even odds of a second one

Where Eiko 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 2018 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 348,244 children born in 2018 and it's an even bet that one of them is another Eiko. In a class of 30 the chance is Under 1%.

When Eikos were born

Half of everyone ever recorded as Eiko was born before 1926 — so the typical Eiko is around 99 today.

Median birth year
1926
About 99 years old
Biggest decade
1920s
47.7% of all use
Born in the last 25 years
3.6%
Mostly a past generation
Recorded since 1950
12
People you could plausibly meet
Choose a decade

1920s — 47.7% of all recorded uses (93).

Is Eiko 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 1921 (18)
Years since peak
104
Years
Year-to-year steadiness
Volatile
49.4% average annual change
Best rank ever
#2,145
1921

Spellings of Eiko

Eiko is not the most common spelling — Erika is, with 71.3% against Eiko's 0.11%.

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 Eiko is used

Across 1910–2025, Eiko was most concentrated in Hawaii — about 1 in 20,000 girls, against 1 in 208,540 across all states with data. It was least common in California (1 in —).

05 per 100,000

Most concentrated

  1. 1Hawaii1 in 20,000
  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. Eiko has too little recent state data to map, so this covers all years from 1910.

Eiko 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
#2,145
1921
Peak year
1921
18 that year
First recorded
1915
Last recorded
2018
All-time count
195
Count in 2025
Under 5

Names similar to Eiko

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

KikoNikoMikoRikoYumikoNamikoKamikoAnikoAmikoAkikoAikoKeikoMeikoErikoNorikoEmikoMaikoReikoFujikoTimikoMarikoTokikoYukikoKumiko

Sibling names for Eiko

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 Eiko

Top names of 1921, Eiko's peak yearThe 1920s in fullOther names that peaked in 1921Girls' names starting with E