Eilyn
#4,584 in 2025Girls' nameMeaning not yet documented
Eilyn has been given to 285 babies in the U.S. since 2001. In 2025 it ranked #4,584 of 17,293 girls’ names in use. Its peak year was 2025, with 30 recorded.
Babies named Eilyn, 2025
1 in 111,000
Eilyn 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 Eilyn?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 111,000
- 30 of 3,315,165 births
- Among girls only
- 1 in 53,600
- <0.01% of girls
- Rank, 2025
- #4,584
- of 17,293 girls’ names in use
- Coin-flip room size
- 76,598 kids
- Even odds of a second one
Where Eilyn 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 76,598 children born in 2025 and it's an even bet that one of them is another Eilyn. In a class of 30 the chance is Under 1%.
When Eilyns were born
Half of everyone ever recorded as Eilyn was born before 2018 — so the typical Eilyn is around 7 today.
- Biggest decade
- 2020s
- 41.4% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 285
- People you could plausibly meet
2020s — 41.4% of all recorded uses (118).
Is Eilyn 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
- +216
- Places climbed
- Rank vs 5 years ago
- +3,953
- Places climbed
- Rank vs 10 years ago
- +4,009
- Places climbed
- Births vs 10 years ago
- 2.31×
- More babies than then
- Share of its own peak
- 100.0%
- Peak was 2025 (30)
- Years since peak
- Peaking now
- At its all-time high
- Year-to-year steadiness
- Volatile
- 29.5% average annual change
Spellings of Eilyn
Eilyn is not the most common spelling — Emily is, with 37.9% against Eilyn's 0.01%.
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 Eilyn is used
Across 1910–2025, Eilyn was most concentrated in California — about 1 in — girls, against 1 in 3,202,555 across all states with data.
Most concentrated
- 1California1 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. Eilyn has too little recent state data to map, so this covers all years from 1910.
Eilyn around the world
Where Eilyn 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.
- France2020–2020#7,702in 2020
Popularity data from Institut national de la statistique et des études économiques. INSEE data under Licence Ouverte / Etalab 2.0.
Eilyn by the numbers
The raw record for each sex the name is used for.
Names similar to Eilyn
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Eilyn
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.