Romilly

#7,823 in 2025Girls' name

English surname transferred into given-name use

Romilly has been given to 126 babies in the U.S. since 2013. In 2025 it ranked #7,823 of 17,293 girls’ names in use. Its peak year was 2024, with 20 recorded.

Babies named Romilly, 2025

1 in 237,000

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Romilly: meaning, origin, and history

English surname transferred into given-name use

English surname transfer

What Romilly means

Romilly is a given name.

Documented naming usage and pronunciation

Romilly is used in English (British, Rare).

The naming story behind Romilly

Romilly is a given name adopted from English surname. This establishes the immediate naming route. A surname transfer is different from a direct translation of the modern given-name spelling; the family name may have its own earlier derivation.

American usage and historical context

In the United States, 126 girls were recorded with the name Romilly between 2013 and 2025. Its highest annual count was 20 in 2024; its best national rank was #6,114 in 2024.

Over 5 years its rank rose, from #8,848 in 2020 to #7,823 in 2025. Over 10 years its rank rose, from #16,040 in 2015 to #7,823 in 2025.

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.

U.S. Social Security Administration: national name data and limitations

How common is Romilly?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025: 1 in 237,000; 14 of 3,315,165 births
Among girls only: 1 in 115,000; <0.01% of girls
Rank, 2025: #7,823; of 17,293 girls’ names in use
Coin-flip room size: 164,137 kids; Even odds of a second one

Where Romilly 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 2025 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 164,137 children born in 2025 and it's an even bet that one of them is another Romilly. In a class of 30 the chance is Under 1%.

When Romillys were born

Half of everyone ever recorded as Romilly was born before 2021 — so the typical Romilly is around 4 today.

Median birth year: 2021; About 4 years old
Biggest decade: 2020s; 61.9% of all use
Born in the last 25 years: 100.0%; A modern name
Recorded since 1950: 126; People you could plausibly meet

Choose a decade

2020s — 61.9% of all recorded uses (78).

Is Romilly 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: −1,709; Places dropped
Rank vs 5 years ago: +1,025; Places climbed
Rank vs 10 years ago: +8,217; Places climbed
Births vs 10 years ago: 2.33×; More babies than then
Share of its own peak: 70.0%; Peak was 2024 (20)
Years since peak: 1; Years
Year-to-year steadiness: Volatile; 41.7% average annual change
Best rank ever: #6,114; 2024

Spellings of Romilly

Romilly is not the most common spelling — Reilly is, with 52.8% against Romilly's 1.2%.

Reilly52.8%5,528
Milly32.0%3,347
Emilly14.0%1,462
Romilly1.2%126

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.

Romilly around the world

Where Romilly 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.

England & Wales
1996–2025
#551
in 2025
Scotland
2004–2025
#632
in 2025
Ireland
2002–2002
#620
in 2002

Popularity data from Office for National Statistics, National Records of Scotland and Central Statistics Office. ONS, NRS data under Open Government Licence v3.0. CSO data under CC BY 4.0.

Romilly by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025: #7,823
Trend vs 5 yrs ago: Up 1,025
Best rank ever: #6,114; 2024
Peak year: 2024; 20 that year
First recorded: 2013
Last recorded: 2025
All-time count: 126
Count in 2025: 14

Names similar to Romilly

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

Romaisa Romani Romiyah Arielly Romanda Romonia Romonda Romesha Anelly Romelda Romunda Romey Isabelly Romiah Romeli Romelle Romell Romania Camilly Romilda Gianelly Joelly Noelly Romeka

Sibling names for Romilly

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

Annabell Abagail Leonor Karleigh Adelle Keren Kendyl Anabel

For a brother

Aaden Kale Evans Hamilton Caesar Brennen Tobin Jerimiah

Explore around Romilly

Top names of 2024, Romilly's peak year The 2020s in full Other names that peaked in 2024 Girls' names starting with R