Lyllian
#16,335 in 2025Girls' nameMeaning not yet documented
Lyllian has been given to 635 babies in the U.S. since 1923. In 2025 it ranked #16,335 of 17,293 girls’ names in use. Its peak year was 2009, with 45 recorded.
Babies named Lyllian, 2025
1 in 663,000
Lyllian 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 Lyllian?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 663,000
- 5 of 3,315,165 births
- Among girls only
- 1 in 321,000
- <0.01% of girls
- Rank, 2025
- #16,335
- of 17,293 girls’ names in use
- Coin-flip room size
- 459,581 kids
- Even odds of a second one
Where Lyllian 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 459,581 children born in 2025 and it's an even bet that one of them is another Lyllian. In a class of 30 the chance is Under 1%.
When Lyllians were born
Half of everyone ever recorded as Lyllian was born before 2010 — so the typical Lyllian is around 15 today.
- Biggest decade
- 2010s
- 47.9% of all use
- Born in the last 25 years
- 94.8%
- A modern name
- Recorded since 1950
- 623
- People you could plausibly meet
2010s — 47.9% of all recorded uses (304).
Is Lyllian 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
- −8,912
- Places dropped
- Rank vs 10 years ago
- −11,526
- Places dropped
- Births vs 10 years ago
- 0.17×
- Fewer babies than then
- Share of its own peak
- 11.1%
- Peak was 2009 (45)
- Years since peak
- 16
- Years
- Year-to-year steadiness
- Shifting
- 18.4% average annual change
Spellings of Lyllian
Lyllian is not the most common spelling — Lillian is, with 75.7% against Lyllian's 0.10%.
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 Lyllian is used
Across 1910–2025, Lyllian was most concentrated in Indiana — about 1 in — girls, against 1 in 704,155 across all states with data. It was least common in Ohio (1 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. Lyllian has too little recent state data to map, so this covers all years from 1910.
Lyllian around the world
Where Lyllian 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.
- France2000–2015#5,093in 2015
Popularity data from Institut national de la statistique et des études économiques. INSEE data under Licence Ouverte / Etalab 2.0.
Lyllian by the numbers
The raw record for each sex the name is used for.
Names similar to Lyllian
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Lyllian
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.