Eileen vs Louisa

Eileen and Louisacompared 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.

Norway · Girls
In 2025, Eileen was ranked #501 and Louisa #245 among girls in Norway.
Northern Ireland · Girls
In 2021, Eileen was ranked #446 and Louisa #298 among girls in Northern Ireland.
Scotland · Girls
In 2024, Eileen was ranked #638 and Louisa #333 among girls in Scotland.
Republic of Ireland · Girls
In 2024, Eileen was ranked #372 and Louisa #631 among girls in Republic of Ireland.
England and Wales · Girls
In 2024, Eileen was ranked #855 and Louisa #751 among girls in England and Wales.

Eileen and Louisa over time

Eileen and Louisa appear together in 2 published lists, across 87 years of shared records. Neither was ahead in more lists than the other.

In none of those lists did their order change and stay changed.

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.

How this pair is related

The relationship kinds these two qualify for, each under its own stated rule. Every one is drawn from a list they both appear in.

Repeatedly exchanged positions
Eileen and Louisa changed places 8 times in Republic of Ireland · Girls between 1964 and 2024, ending at #372 and #631.
Longest-running competitions
Eileen and Louisa were both ranked in Republic of Ireland · Girls for 58 years, from 1964 to 2024, ending at #372 and #631.

List by list

Republic of Ireland · Girls58 shared years, 1964–2024
Eileen held the stronger position in 52 of those years, Louisa in 4.
Highest recorded here: Eileen #17 in 1964, Louisa #228 in 1967.
The order between them never changed and held in this list.
Most recent shared year, 2024: Eileen #372, Louisa #631.
England and Wales · Girls29 shared years, 1996–2024
Eileen held the stronger position in 0 of those years, Louisa in 29.
Highest recorded here: Eileen #855 in 2024, Louisa #175 in 1998.
The order between them never changed and held in this list.
Most recent shared year, 2024: Eileen #855, Louisa #751.

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 Eileen

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

Geraldine vs Eileen
In 1964 they stood at #9 and #17 in Republic of Ireland · Girls, 8 places apart; by 2021 they were #883 and #322.
Geraldine · Eileen · 51 shared years, 1964–2021 · Started together, ended far apart
See the 2021 Republic of Ireland ranking
Pauline vs Eileen
In 1964 they stood at #12 and #17 in Republic of Ireland · Girls, 5 places apart; by 2018 they were #896 and #336.
Pauline · Eileen · 45 shared years, 1964–2018 · Started together, ended far apart
See the 2018 Republic of Ireland ranking
Eileen vs Carmel
In 1964 they stood at #17 and #21 in Republic of Ireland · Girls, 4 places apart; by 2015 they were #362 and #896.
Eileen · Carmel · 46 shared years, 1964–2015 · Started together, ended far apart
See the 2015 Republic of Ireland ranking
Deirdre vs Eileen
In 1964 they stood at #14 and #17 in Republic of Ireland · Girls, 3 places apart; by 2019 they were #871 and #421.
Deirdre · Eileen · 51 shared years, 1964–2019 · Started together, ended far apart
See the 2019 Republic of Ireland ranking

Side by side

Side-by-side comparison of Eileen, Louisa
Field	Eileen	Louisa
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	Not yet recorded
Syllables	2	2
Common variants / nicknames	Not yet recorded	Not yet recorded
Recorded regional usage	GB-ENW, GB-NIR, GB-SCT, IE, NO	GB-ENW, GB-NIR, GB-SCT, IE, NO
Most recent popularity observation	Republic of Ireland · Girls #443 (2025)	Norway · Girls #245 (2025)
Pronunciation clarity (demonstration score)	Not yet recorded	Not yet recorded
Spelling simplicity (demonstration score)	88/100	88/100
International familiarity (demonstration score)	100/100	100/100
Data Confidence	medium	medium

What the data shows

Eileen and Louisa both have 2 syllables.
Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE, NO.

How each name got here

Eileen

Popularity journey

First recorded1945
First recorded at #324 among girls in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1964–2025
Highest recorded position: #17 among girls in Republic of Ireland, in 1964 (recorded 1964–2025).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #501 among girls in Norway, in 2025.
Norway · Girls

Louisa

Popularity journey

First recorded1964
First recorded at #257 among girls in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded2001–2021
Highest recorded position: #166 among girls in Northern Ireland, in 2016 (recorded 2001–2021).
Northern Ireland · Girls
Most recent2025
Most recently recorded at #245 among girls in Norway, in 2025.
Norway · Girls