Jilleen
Girls' nameMeaning not yet documented
Jilleen has been given to 138 babies in the U.S. since 1948. 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 1972, with 9 recorded.
Babies named Jilleen, 1998
1 in 735,000
Jilleen 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 Jilleen?
Jilleen had fewer than 5 recorded uses in 2025, so these figures use 1998, the last year it was published.
- Among all babies, 1998
- 1 in 735,000
- 5 of 3,677,189 births
- Among girls only
- 1 in 353,000
- <0.01% of girls
- Rank, 1998
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 509,768 kids
- Even odds of a second one
Where Jilleen sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 1998 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 509,768 children born in 1998 and it's an even bet that one of them is another Jilleen. In a class of 30 the chance is Under 1%.
When Jilleens were born
Half of everyone ever recorded as Jilleen was born before 1970 — so the typical Jilleen is around 55 today.
- Biggest decade
- 1970s
- 30.4% of all use
- Born in the last 25 years
- 37.7%
- Spread across generations
- Recorded since 1950
- 133
- People you could plausibly meet
1970s — 30.4% of all recorded uses (42).
Is Jilleen 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 1972 (9)
- Years since peak
- 53
- Years
- Year-to-year steadiness
- Shifting
- 23.6% average annual change
Spellings of Jilleen
Jilleen is not the most common spelling — Eileen is, with 37.5% against Jilleen's 0.03%.
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.
Jilleen around the world
Where Jilleen 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.
- South Australia1948–1948#369in 1948
Popularity data from Consumer and Business Services (South Australia). CBS SA data under CC BY 4.0.
Jilleen by the numbers
The raw record for each sex the name is used for.
Names similar to Jilleen
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Jilleen
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.