Sekai

#2,444 in 2025UnisexBoys' nameGirls' name

Laugh

Sekai has been given to 372 babies in the U.S. since 2001. In 2025 it ranked #2,444 of 13,926 boys’ names in use. Its peak year was 2025, with 56 recorded. It's used for both sexes: 76% boys, 24% girls all-time.

Babies named Sekai, 2025

1 in 59,200

Sekai over time, 1880–2025

BoysGirls

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Girls or boys — Sekai over time

In 2025, Sekai went to 10% girls and 90% boys.

20002025

A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.

Sekai: meaning, origin, and history

Laugh

Deeper origin not confirmed in the cited records

What Sekai means

Sekai means “laugh”.

American usage and historical context

In the United States, 284 boys were recorded with the name Sekai between 2001 and 2025. Its highest annual count was 56 in 2025; its best national rank was #2,444 in 2025.

Over 5 years its rank rose, from #8,610 in 2020 to #2,444 in 2025. Over 10 years its rank rose, from #13,705 in 2015 to #2,444 in 2025.

In the United States, 88 girls were recorded with the name Sekai between 2000 and 2025. Its highest annual count was 10 in 2006; its best national rank was #11,269 in 2006.

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 Sekai?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025: 1 in 59,200; 56 of 3,315,165 births
Among boys only: 1 in 30,500; <0.01% of boys
Rank, 2025: #2,444; of 13,926 boys’ names in use
Coin-flip room size: 41,035 kids; Even odds of a second one

Where Sekai 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 2025 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 41,035 children born in 2025 and it's an even bet that one of them is another Sekai. In a class of 30 the chance is Under 1%.

When Sekais were born

Half of everyone ever recorded as Sekai was born before 2022 — so the typical Sekai is around 3 today.

Median birth year: 2022; About 3 years old
Biggest decade: 2020s; 65.1% of all use
Born in the last 25 years: 100.0%; A modern name
Recorded since 1950: 284; People you could plausibly meet

Choose a decade

2020s — 65.1% of all recorded uses (185).

Is Sekai 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: +818; Places climbed
Rank vs 5 years ago: +6,166; Places climbed
Rank vs 10 years ago: +11,261; Places climbed
Births vs 10 years ago: 11.20×; More babies than then
Share of its own peak: 100.0%; Peak was 2025 (56)
Years since peak: Peaking now; At its all-time high
Year-to-year steadiness: Volatile; 45.2% average annual change
Best rank ever: #2,444; 2025

Spellings of Sekai

Sekai is not the most common spelling — Sean is, with 77.1% against Sekai's 0.05%.

Sean77.1%423,637
Kai12.8%70,232
Mekhi2.2%12,354
Makai1.7%9,298
Semaj1.4%7,421
Jakai0.74%4,059
Zakai0.74%4,052
Esai0.45%2,478

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 Sekai is used

Across 1910–2025, Sekai was most concentrated in Florida — about 1 in — boys, against 1 in 1,669,871 across all states with data. It was least common in Texas (1 in —).

00 per 100,000

State popularity map

Most concentrated

1Florida1 in —
2North Carolina1 in —
3New York1 in —
4Pennsylvania1 in —
5Texas1 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. Sekai has too little recent state data to map, so this covers all years from 1910.

Sekai by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025: #2,444
Trend vs 5 yrs ago: Up 6,166
Best rank ever: #2,444; 2025
Peak year: 2025; 56 that year
First recorded: 2001
Last recorded: 2025
All-time count: 284
Count in 2025: 56

As a girl's name

Rank in 2025: #14,658
Trend vs 5 yrs ago: New entry
Best rank ever: #11,269; 2006
Peak year: 2006; 10 that year
First recorded: 2000
Last recorded: 2025
All-time count: 88
Count in 2025: 6

Names similar to Sekai

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

Sekou Dakai Rakai Takai Nikai Sakai Lakai Mekai Zekai Mykai Elikai Mehkai Mikai Aukai Sekani Nakai Xakai Alekai Mahkai Shakai Zahkai Ahkai Zakkai Alikai

Sibling names for Sekai

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

Leonor Keren Eloisa Nila Kamilah Denisse Adelia Adina

For a brother

Evans Leander Henri Lucio Gray Arvin Wylie Hasan

Explore around Sekai

Top names of 2025, Sekai's peak year The 2020s in full Other names that peaked in 2025 Boys' names starting with S