Lill

Girls' name

Little

Lill has been given to 11 babies in the U.S. since 1946. 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 1946, with 6 recorded.

Babies named Lill, 1960

1 in 831,000

Lill over time, 1880–2025

Girls

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Lill: meaning, origin, and history

Little

Deeper origin not confirmed in the cited records

What Lill means

Lill means “little”, associated with lille.

Origin, language, and formation

Lill is used in Norwegian and Swedish.

Related names and everyday forms

Related names include Lillian.

American usage and historical context

In the United States, 11 girls were recorded with the name Lill between 1946 and 1960. Its highest annual count was 6 in 1946; its best national rank was #4,737 in 1946.

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 Lill?

Lill had fewer than 5 recorded uses in 2025, so these figures use 1960, the last year it was published.

Among all babies, 1960: 1 in 831,000; 5 of 4,153,934 births
Among girls only: 1 in 404,000; <0.01% of girls
Rank, 1960: Unranked; Fewer than 5 uses
Coin-flip room size: 575,859 kids; Even odds of a second one

Where Lill 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 1960 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 575,859 children born in 1960 and it's an even bet that one of them is another Lill. In a class of 30 the chance is Under 1%.

When Lills were born

Half of everyone ever recorded as Lill was born before 1946 — so the typical Lill is around 79 today.

Median birth year: 1946; About 79 years old
Biggest decade: 1940s; 54.5% of all use
Born in the last 25 years: 100.0%; A modern name
Recorded since 1950: 5; People you could plausibly meet

Choose a decade

1940s — 54.5% of all recorded uses (6).

Is Lill 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 1946 (6)
Years since peak: 79; Years
Year-to-year steadiness: Not enough data; Too few years
Best rank ever: #4,737; 1946

Spellings of Lill

Lill is not the most common spelling — Lisa is, with 39.5% against Lill's <0.01%.

Lisa39.5%967,229
Jill8.5%208,071
Lily7.7%189,644
Lillie6.5%158,918
Lola4.0%96,892
Lula3.5%85,248
Mila3.5%84,489
Lila3.1%76,493

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.

Lill around the world

Where Lill 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.

Norway
1880–2014
#582
in 2014

Popularity data from Statistics Norway. SSB data under CC BY 4.0.

Lill 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: #4,737; 1946
Peak year: 1946; 6 that year
First recorded: 1946
Last recorded: 1960
All-time count: 11
Count in 2025: Under 5

Names similar to Lill

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

Lile Liliet Lilajo Lilan Lilar Lilea Liliam Lilien Lilette Lilabeth Liler Lilynn Lilymay Lilani Lillya Lilyjo Lilyin Lillea Lilium Lilika Liliona Lileah Lilita Lilany

Sibling names for Lill

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

Jerrie Dian Carolann Karolyn Elida Reta Janey Ernestina

For a brother

Connie Domingo Fredric Felton Gale Frederic Ronny Denny

Explore around Lill

Top names of 1946, Lill's peak year The 1940s in full Other names that peaked in 1946 Girls' names starting with L