Gillianne

Girls' name

Meaning not yet documented

Gillianne has been given to 38 babies in the U.S. since 1998. 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 2000, with 12 recorded.

Babies named Gillianne, 2003

1 in 760,000

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

How common is Gillianne?

Gillianne had fewer than 5 recorded uses in 2025, so these figures use 2003, the last year it was published.

Among all babies, 2003
1 in 760,000
5 of 3,801,425 births
Among girls only
1 in 365,000
<0.01% of girls
Rank, 2003
Unranked
Fewer than 5 uses
Coin-flip room size
526,991 kids
Even odds of a second one

Where Gillianne 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 2003 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 526,991 children born in 2003 and it's an even bet that one of them is another Gillianne. In a class of 30 the chance is Under 1%.

When Gilliannes were born

Half of everyone ever recorded as Gillianne was born before 2000 — so the typical Gillianne is around 25 today.

Median birth year
2000
About 25 years old
Biggest decade
2000s
65.8% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
38
People you could plausibly meet
Choose a decade

2000s — 65.8% of all recorded uses (25).

Is Gillianne 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 2000 (12)
Years since peak
25
Years
Year-to-year steadiness
Volatile
47.8% average annual change
Best rank ever
#8,203
2000

Spellings of Gillianne

Gillianne is not the most common spelling — Gillian is, with 54.5% against Gillianne's 0.13%.

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.

Gillianne around the world

Where Gillianne 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.

  • France
    1978–1978
    #2,512
    in 1978
  • South Australia
    1964–1983
    #686
    in 1983

Popularity data from Institut national de la statistique et des études économiques and Consumer and Business Services (South Australia). INSEE data under Licence Ouverte / Etalab 2.0. CBS SA data under CC BY 4.0.

Gillianne 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
#8,203
2000
Peak year
2000
12 that year
First recorded
1998
Last recorded
2003
All-time count
38
Count in 2025
Under 5

Names similar to Gillianne

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

Sibling names for Gillianne

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 Gillianne