Seiya
#8,130 in 2025Boys' nameMeaning not yet documented
Seiya has been given to 112 babies in the U.S. since 1996. In 2025 it ranked #8,130 of 13,926 boys’ names in use. Its peak year was 2005, with 10 recorded.
Babies named Seiya, 2025
1 in 332,000
Seiya over time, 1880–2025
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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Seiya?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 332,000
- 10 of 3,315,165 births
- Among boys only
- 1 in 171,000
- <0.01% of boys
- Rank, 2025
- #8,130
- of 13,926 boys’ names in use
- Coin-flip room size
- 229,791 kids
- Even odds of a second one
Where Seiya sits on the popularity scale
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.
Put another way: gather 229,791 children born in 2025 and it's an even bet that one of them is another Seiya. In a class of 30 the chance is Under 1%.
When Seiyas were born
Half of everyone ever recorded as Seiya was born before 2012 — so the typical Seiya is around 13 today.
- Biggest decade
- 2000s
- 33.0% of all use
- Born in the last 25 years
- 89.3%
- A modern name
- Recorded since 1950
- 112
- People you could plausibly meet
2000s — 33.0% of all recorded uses (37).
Is Seiya 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
- +728
- Places climbed
- Rank vs 5 years ago
- +3,655
- Places climbed
- Rank vs 10 years ago
- +2,304
- Places climbed
- Births vs 10 years ago
- 1.43×
- More babies than then
- Share of its own peak
- 100.0%
- Peak was 2005 (10)
- Years since peak
- 20
- Years
- Year-to-year steadiness
- Volatile
- 34.1% average annual change
Spellings of Seiya
Seiya is not the most common spelling — Sevyn is, with 19.1% against Seiya's 0.93%.
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.
Seiya around the world
Where Seiya ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- France2012–2025#2,518in 2025
Popularity data from Institut national de la statistique et des études économiques. INSEE data under Licence Ouverte / Etalab 2.0.
Seiya by the numbers
The raw record for each sex the name is used for.
Names similar to Seiya
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Seiya
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.