Lillias

Girls' name

Possibly lily, through Lilias

Lillias has been given to 194 babies in the U.S. since 1892. 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 1918, with 12 recorded.

Babies named Lillias, 1938

1 in 443,000

Lillias over time, 1880–2025

Girls
05101518801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Lillias: meaning, origin, and history

Possibly lily, through Lilias

Latin

What Lillias means

Lillias belongs to the name family reached through Lillias → Lilias. Its meaning is “lily”.

Origin, language, and formation

Lillias is used in English. Its origins include Latin.

Related names and everyday forms

Related names include Lilias.

American usage and historical context

In the United States, 194 girls were recorded with the name Lillias between 1892 and 1938. Its highest annual count was 12 in 1918; its best national rank was #1,565 in 1892.

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 Lillias?

Lillias had fewer than 5 recorded uses in 2025, so these figures use 1938, the last year it was published.

Among all babies, 1938
1 in 443,000
5 of 2,212,569 births
Among girls only
1 in 221,000
<0.01% of girls
Rank, 1938
Unranked
Fewer than 5 uses
Coin-flip room size
306,728 kids
Even odds of a second one

Where Lillias 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 1938 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 306,728 children born in 1938 and it's an even bet that one of them is another Lillias. In a class of 30 the chance is Under 1%.

When Lilliass were born

Half of everyone ever recorded as Lillias was born before 1920 — so the typical Lillias is around 105 today.

Median birth year
1920
About 105 years old
Biggest decade
1920s
37.1% of all use
Born in the last 25 years
81.4%
A modern name
Recorded since 1950
0
People you could plausibly meet
Choose a decade

1920s — 37.1% of all recorded uses (72).

Is Lillias 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 1918 (12)
Years since peak
107
Years
Year-to-year steadiness
Volatile
34.6% average annual change
Best rank ever
#1,565
1892

Spellings of Lillias

Lillias is not the most common spelling — Lillian is, with 57.2% against Lillias's 0.02%.

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.

Lillias 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
#1,565
1892
Peak year
1918
12 that year
First recorded
1892
Last recorded
1938
All-time count
194
Count in 2025
Under 5

Names similar to Lillias

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

Sibling names for Lillias

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 Lillias