Isabelle vs Marilyn

Isabelle and Marilyncompared on official birth-registration statistics and Namewise's recorded data. This page states what each name's record shows — it never picks a winner or scores one name against the other.

Head to head

Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.

Republic of Ireland · Girls
In 2023, Isabelle was ranked #32 and Marilyn #856 among girls in Republic of Ireland.
England and Wales · Girls
In 2024, Isabelle was ranked #52 and Marilyn #1541 among girls in England and Wales.
Northern Ireland · Girls
In 2015, Isabelle was ranked #166 and Marilyn #426 among girls in Northern Ireland.

Isabelle and Marilyn over time

Isabelle and Marilyn appear together in 2 published lists, across 37 years of shared records. Isabelle held the stronger position in more years in 2 of them, Marilyn in 0.

The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.

Each reached its own highest recorded position first in 1 of the lists they share.

Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.

List by list

England and Wales · Girls26 shared years, 1996–2024
Isabelle held the stronger position in 26 of those years, Marilyn in 0.
Highest recorded here: Isabelle #17 in 2008, Marilyn #1541 in 2024.
The order between them never changed and held in this list.
Most recent shared year, 2024: Isabelle #52, Marilyn #1541.
Republic of Ireland · Girls11 shared years, 1971–2023
Isabelle held the stronger position in 7 of those years, Marilyn in 3.
Highest recorded here: Isabelle #26 in 2015, Marilyn #326 in 1971.
The order changed in 1995: Isabelle moved ahead. In 1994 they stood at #459 and #414; by 1995 that had become #205 and #516.
Most recent shared year, 2023: Isabelle #32, Marilyn #856.

Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.

Where to go next

Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.

Other comparisons involving Isabelle

Pairs where Isabelle shares a published list with another name, each measured inside one registrar's own list.

Stacey vs Isabelle
In 1996 they stood at #97 and #102 in England and Wales · Girls, 5 places apart; by 2024 they were #3015 and #52.
Stacey · Isabelle · 29 shared years, 1996–2024 · Started together, ended far apart
See the 2024 England and Wales ranking
Sophia vs Isabelle
Sophia and Isabelle changed places 12 times in Republic of Ireland · Girls between 1971 and 2025, ending at #14 and #34.
Sophia · Isabelle · 44 shared years, 1971–2025 · Repeatedly exchanged positions
See the 2025 Republic of Ireland ranking
Amelia vs Isabelle
Amelia and Isabelle both rose over the same years in 3 registrars — England and Wales · Girls; New Zealand · Girls; Republic of Ireland · Girls. Each list is measured against its own starting position; the positions are never combined.
Amelia · Isabelle · 41 shared years, 1971–2025 · Moved together in several countries
Ava vs Isabelle
Both reached their highest recorded position in Republic of Ireland · Girls within 2 years — Ava #1 in 2008, Isabelle #26 in 2010.
Ava · Isabelle · 41 shared years, 1981–2025 · Peaked in the same years
See the 2010 Republic of Ireland ranking

Side by side

Side-by-side comparison of Isabelle, Marilyn
Field	Isabelle	Marilyn
Record type	Official statistical record (evidence-only)	Official statistical record (evidence-only)
Gender usage	female	female
Meaning	Not yet recorded	Not yet recorded
Origin	Not yet recorded	Not yet recorded
Pronunciation		Not yet recorded
Syllables	4	3
Common variants / nicknames	Not yet recorded	Not yet recorded
Recorded regional usage	AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ	AU-NSW, GB-ENW, GB-NIR, IE, NZ
Most recent popularity observation	Republic of Ireland · Girls #34 (2025)	England and Wales · Girls #1541 (2024)
Pronunciation clarity (demonstration score)	Not yet recorded	Not yet recorded
Spelling simplicity (demonstration score)	76/100	82/100
International familiarity (demonstration score)	100/100	100/100
Data Confidence	medium	medium

What the data shows

Isabelle has 4 syllables, compared with 3 for Marilyn.
Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, IE, NZ.

How each name got here

Isabelle

Popularity journey

First recorded1962
First recorded at #454 among girls in Norway in 1962 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1996–2024
Highest recorded position: #17 among girls in England and Wales, in 2008 (recorded 1996–2024).
England and Wales · Girls
Most recent2025
Most recently recorded at #58 among girls in New South Wales, Australia, in 2025.
New South Wales, Australia · Girls

Marilyn

Popularity journey

First recorded1952
First recorded at #28 among girls in New South Wales, Australia in 1952 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New South Wales, Australia · Girls
Highest recorded1952–1956
Highest recorded position: #19 among girls in New South Wales, Australia, in 1953 (recorded 1952–1956).
New South Wales, Australia · Girls
Most recent2024
Most recently recorded at #1541 among girls in England and Wales, in 2024.
England and Wales · Girls